The most visible platy, parallel, mineral grains in foliated metamorphic rocks are usually micas, followed by calcite, feldspars, and quartz. Micas have a distinct platy structure, making them easily visible. Calcite, feldspars, and quartz are also common, although not as distinct in appearance.
The platy, parallel, mineral grains that are the most visual aspect of foliated metamorphic rocks are micas. Metamorphic rocks are rocks that have undergone a metamorphic process. Heat, pressure, and chemical alteration are all examples of such alterations.
These changes are influenced by geological forces such as plate tectonics, magma intrusion, or mountain-building (orogeny) pressures. They are classified as metamorphic rocks if they exhibit substantial structural or mineralogical adjustments relative to their original state.
Some of the common metamorphic rocks are marble, slate, gneiss, schist, etc. Foliated metamorphic rocks, such as schist and gneiss, have a texture that results from the alignment of mineral grains due to extreme pressure and temperature.
Foliated metamorphic rocks have a parallel arrangement of minerals that gives them a platy or layered appearance. They can be distinguished from unfoliated rocks like quartzite and marble, which lack the layered structure seen in foliated metamorphic rocks. Micas are the most visible aspect of foliated metamorphic rocks.
The minerals in foliated metamorphic rocks tend to be flattened, and they appear as elongated flakes or scales. Micas are the most frequent minerals in foliated metamorphic rocks. They have a tendency to separate into thin, flexible sheets, resulting in a distinctively flaky appearance that is particularly prominent in schist.
Therefore, the platy, parallel, mineral grains that are the most visual aspect of foliated metamorphic rocks are micas.
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what is the significance of numerous alternating layers of marine and continental formations found in a plateau? provides direct evidence for the theory of cyclic epeirogeny the sedimentary platform must have been elevated one time lack of highly deformed strata casts doubt on multiple cyclic movements
The alternating layers of marine and continental formations seen in a plateau are noteworthy because they give direct evidence for the notion of cyclic epeirogeny.
According to this view, plateaus and other high landforms are the consequence of periodic large-scale vertical motions of the Earth's crust.The sedimentary platform that makes up the plateau must have been uplifted and submerged throughout time as there are alternating layers of marine and continental formations. This is in line with the cyclic epeirogeny theory, which contends that the crust of the Earth experiences periodic elevation and subsidence.The hypothesis of many cyclic motions, however, is called into question by the absence of strongly deformed layers. If the layers had undergone multiple episodes of intense deformation, such as folding or faulting, it would be difficult to distinguish individual layers of sedimentary rock. As a result, the lack of significantly deformed strata shows that the vertical motions that produced the plateau may have been less abrupt and more gradual than previously believed.
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Which of the layers in the atmosphere do temperatures vary the most?
Answer:
The Troposphere
Explanation:
It has most of our weather like rain, snow, and clouds. On this part of the atmosphere, the temp gets cold as the amount of space above the earth increases.
the most intense winds occur at latitudes that correspond with regions where air masses meet that are characterized by large temperature differences and low pressure zones. what latitude are these winds associated with.
The winds that occur at latitudes where air masses meet and are characterized by large temperature differences and low pressure zones are associated with the latitude of 60 degrees in both hemispheres.
At this latitude, the Polar Front separates cold polar air masses from warm subtropical air masses. The temperature difference between these air masses leads to the formation of low-pressure zones and the development of strong westerly winds known as the Polar Front Jet Stream. These winds can reach speeds of up to 250 mph and can have a significant impact on weather patterns and climate in the mid-latitudes. Therefore, the latitude associated with the most intense winds caused by the meeting of air masses characterized by large temperature differences and low pressure zones is 60 degrees in both hemispheres.
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_______________, are formed when waves carrying silt, sand, or other rock materials deposit their load
Bars, are formed when waves carrying silt, sand, or other rock materials deposit their load.
Bars are formed as a result of the sediments in the water are constantly moving along the shorelines of lakes and oceans with the aid of waves and tides. Due to the high energy waves in the shallow water, waves are continuously reshaping the shoreline and generating sandbars, which are essentially a collection of sand deposited by these waves.
These sandbars frequently occur close to the beach or slightly offshore and are regularly utilized by surfers as a launch platform. In addition, sandbars can develop in other areas, such as in the middle of a river or channel, as a result of moving sediments.A beach is a natural landform that is formed from an accumulation of rocks, sand, or other materials.
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in what location on earth could an eager math student not use her solar-powered calculator at any time at all during the course of a day in june question 10 options: the equator the south pole the north pole anywhere on the international date line
In the South pole, an eager math student not use her solar-powered calculator at any time at all during the course of a day in June.
As the Earth circles around the sun on a slanted axis, sunlight is perceived in extremes at the poles. In reality, the South Pole only sees one dawn (on the September solstice) and one sunset (on the March equinox) per year. The sun is always above the horizon from the South Pole in the summer and below the horizon in the winter. This implies that in the summer, the region receives up to 24 hours of sunlight and in the winter, it receives up to 24 hours of darkness.
Antarctica, one of the planet's seven continents, is where the South Pole is situated. The furthest south on Earth is at the South Pole. That is the exact location where the southern junction of the Earth's axis and surface occurs.
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during the planet formation process, runaway growth of planetesimals is enabled by group of answer choices
During the planet formation process, the runaway growth of planetesimals is enabled by the gravity of the large planetesimals. The statement is very true.
The term planet formation is referred to the processes that resulted in the formation of planets. Planets are born from the same stuff as stars. The vast clouds of gas and dust in space are known as nebulae. The sun, planets, and all other stars in the universe began as a nebula.
The planet formation process begins with the development of planetesimals. Planetesimals are small, irregularly shaped bodies made up of rock and metal that orbit the sun. These planetesimals collided and adhered to one another, forming bigger bodies. These bigger bodies were then attracted to one another by gravity, eventually resulting in the formation of planets.
The larger planetesimals' gravity can attract and merge smaller ones, producing even larger planetesimals. When some planetesimals reach around the size of the Moon or Mars, their gravity becomes strong enough to pull in gas from the surrounding nebula, causing the planetesimal to develop into a planet.
It was said that during the planet formation process, the runaway growth of planetesimals is enabled by the gravity of the large planetesimals.
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A stream or river is a body of water flowing in a __________.
A stream or river is a body of water flowing in a channel.
A stream is a small river that can be crossed by wading or hopping from one bank to the other. If the stream is fed by underground water sources or has a large volume of water, it might be deep enough to require a bridge. The water in a stream or river usually flows downhill due to gravity, but it may also flow from high to low pressure or from an area of high elevation to one of lower elevation.
The movement of a river is aided by the slope of the ground, the size and position of rocks and other debris in its bed, and the amount and speed of water in the river. The soil composition and the landscape through which it flows will also influence the river's flow. The banks of a river or stream are often eroded by the water's movement, and the water may transport soil, rocks, and other debris downstream. This process aids in the formation of canyons, gorges, and other geologic formations.
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geography, or where a person grows up, can influence organizational culture. which example is not shaped by geography?
Geography, or where a person grows up, can influence organizational culture. The example that is not shaped by geography is the option D, eating sushi at lunch break
An employee wellness program is not shaped by geography because it is not related to the location or geography of the employees. It is related to the company's policy and strategy for promoting the health and wellbeing of its employees, regardless of where they live or grow up.
Therefore, this option is the correct answer to the question is option D.
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Complete Question:
Geography, or where a person grows up, can influence organizational culture. Which example is NOT shaped by geography?
A. siesta (a short afternoon nap) in some Latin American countries
B. Muslim's afternoon prayer session
C. wearing a traditional aloha shirt instead of a suit and tie to do business
D. eating sushi at lunch break
The Mississippi River system is the largest drainage basin, or ________, in the United States.
The Mississippi River system is the largest drainage basin, or watershed, in the United States.
A watershed is an area of land that drains water into a particular river, lake, or other body of water. The Mississippi River system includes a vast network of tributaries, or smaller rivers that flow into it, stretching from the Rocky Mountains in the west to the Appalachians in the east. It encompasses all or part of 31 states and covers over 1.2 million square miles of land. The Mississippi River system plays a vital role in transportation, recreation, and agriculture, as well as providing habitat for a diverse array of plant and animal species.
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g does the model suggest that increased sst relate to more storms? is the influnce of sst on number of storms statistically significant?
The model suggests that increased SST does relate to more storms. It is likely that the influence of SST on the number of storms is statistically significant, as it has been found in studies that a positive correlation exists between SST and the number of storms in an area.
Higher SST can lead to more frequent and intense storms due to the increased evaporation and the resulting moisture in the atmosphere. This moisture can then be used to fuel more storms.
Additionally, higher SST leads to warmer ocean waters, which provide more energy for storms to form and grow. Overall, this suggests that SST can have a significant influence on the number of storms in an area.
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|Test, pls help!|
6. When a warm front from a large body of water moves quickly into a land area of cold air, we can expect ___ to occur where the two air masses meet.
A. Fog
B. Low Humidity
C. Precipitation
D. A gentle sea breeze
Answer: C) precipitation
detrital sedimentary rocks are classified (named) based on the . group of answer choices grain sizes of the detrital particles mineral composition degree of compaction and lithification colors of the cementing minerals
Detrital sedimentary rocks are classified (named) based on the grain sizes of the detrital particles. Therefore, the correct option is option 1.
Sedimentary rocks are formed as a result of sedimentary processes such as weathering, erosion, and transportation of minerals and rock debris. Sedimentary rocks are created by the settling of minerals and rock debris that were carried away by wind, water, and ice.
Sedimentary rocks that are formed from fragments of rock or minerals that have been weathered and transported are referred to as detrital or clastic sedimentary rocks. They're made up of fragments of minerals or rock that were carried away by a natural process and accumulated in a sedimentary basin.
The grain size of the particles in the sedimentary rock determines its name. A sedimentary rock is referred to as breccia when its particles are larger than 2mm, as sandstone when its particles are between 1/16 and 2mm, as siltstone when its particles are between 1/256 and 1/16mm, and as shale when its particles are smaller than 1/256mm.
Hence, the detrital sedimentary rocks are named according to their grain size, with names like sandstone, siltstone, and shale. Hence, the first option is the first option.
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What is the history relations of the United States and Cuba?
Answer:
Cuba and the United States restored diplomatic relations on July 20, 2015. Relations had been severed in 1961 during the Cold War. U.S. diplomatic representation in Cuba is handled by the United States Embassy in Havana, and there is a similar Cuban Embassy in Washington, D.C.
based upon your analysis, most stratovolcanoes form in which tectonic setting? group of answer choices divergent boundaries oceanic-continental convergent boundaries mantle plumes (hotspots) all of the above
The correct option is All of the above i.e. D. Most stratovolcanoes form in convergent boundaries, which occur when two tectonic plates collide. This collision causes one of the plates to slide beneath the other, creating a subduction zone.
The subducting plate melts due to the extreme pressure and heat created from the collision, resulting in magma being forced upward to form a stratovolcano. Oceanic-continental divergent boundaries can also form stratovolcanoes, as the plate separation creates a rift zone.
Mantle plumes, also known as hotspots, can also form stratovolcanoes when a column of hot material from the mantle rises up through the Earth's crust, creating a weak area of the crust which can then be filled with magma. All of these tectonic settings can create stratovolcanoes. The correct option is All of the above i.e. D.
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your job is to locate the world's plate boundaries. to do this, you can use only one map. the best map to choose for this job is a map that shows the worldwide locations of:
Answer: To locate the World's plate boundaries, the best map to choose is the Map that shows the worldwide locations of tectonic plates.
Explanation:
What are tectonic plates?
Tectonic plates are enormous pieces of Earth's crust that lie beneath the Earth's surface and are in constant motion. They are composed of two types of crust:
Oceanic crust Continental crust.These plates shift and move around the Earth's mantle, causing the earthquakes and volcanic eruptions that we witness. The plate boundaries of the world are classified into three types, divergent, convergent, and transform.
Divergent boundaries: It is a boundary where two plates are moving apart. The plates diverge at these boundaries, which can cause rift valleys or ridges to form, and is an important part of the plate tectonic system.Convergent boundaries: These are boundaries where two plates move towards each other, which can cause a collision or subduction zone.Transform boundaries: These are boundaries where two plates slide past each other, causing earthquakes when the plates move against each other.To locate the World's plate boundaries, a map that shows the worldwide locations of tectonic plates is the best map to choose from.
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Determine whether or not each discovery contributed to the confirmation that other galaxies existed outside of the Milky Way. Answer BankVesto Slipher discovered that "spiral nebulae" were receding at great speeds. Immanuel Kant suggested that some nebulae might actually be distant star systems. Edwin Hubble measured the distance of the Andromeda Galaxy. Edwin Hubble resolved individual stars in several spiral nebulae.Confirmed other galaxies exist =?Did not confirm other galaxies exist=?
When it comes to the contributions to the confirmation that other galaxies existed outside of the Milky Way, Vesto Slipher discovered that "spiral nebulae" were receding at great speeds.
Immanuel Kant suggested that some nebulae might actually be distant star systems, Edwin Hubble measured the distance of the Andromeda Galaxy and Edwin Hubble resolved individual stars in several spiral nebulae.
Vesto Slipher discovered that "spiral nebulae" were receding at great speeds. The discovery contributed to the confirmation that other galaxies existed outside of the Milky Way.Immanuel Kant suggested that some nebulae might actually be distant star systems. This discovery did not contribute to the confirmation that other galaxies existed outside of the Milky Way.
Edwin Hubble measured the distance of the Andromeda Galaxy. The discovery contributed to the confirmation that other galaxies existed outside of the Milky Way.Edwin Hubble resolved individual stars in several spiral nebulae. The discovery contributed to the confirmation that other galaxies existed outside of the Milky Way.
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Where the water flowing in a stream enters another body of water, it is called the __________ of the river or stream.
Where the water flowing in a stream enters another body of water, it is called the mouth of the river or stream.
What is the Mouth of the river or stream?The mouth of a river or stream is the point where it empties into a bigger waterway, such as an ocean, sea, or lake. Waterways are important because they transport huge quantities of water and minerals from one location to another, as well as offer a habitat for a diverse range of plants and animals. In addition, bodies of water are significant as they provide essential resources for people, such as freshwater for drinking, fishing, and recreational activities. They may also be utilized as transportation corridors for goods and individuals.
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QUIZ:
Differing Viewpoints answers
1. corruption and ethnic conflict
2. ethnic conflict
3. pollution of the air and destruction of plants and animals
4. iron ore diamonds and natural gas
5. palm oil
6. exploiting the colonies for profit
7. Portugal
8. Central African Republic
9. Men and women eat in separate rooms.
10. poor transportation system,
limited educational system and minimal modern health care. your welcome :)
The main circumstance which most Central African nations experienced since gaining independence is problem of corruption and ethnic conflict. The Option 1 is correct.
How do corruption and ethnic conflict affect Central African nations?Corruption has been a major issue in many African countries, with government officials and business leaders embezzling public funds and engaging in other forms of corrupt practices. This has led to widespread poverty, economic stagnation, and political instability.
Ethnic conflict has also been a recurring problem in many Central African nations, often fueled by political or economic competition between different groups. These conflicts have led to displacement, violence, and loss of life.
Also, poor transportation systems, lack of infrastructure, and other development challenges have also been prevalent issues in the region. While some countries have experienced resource booms from minerals such as diamonds and natural gas, many have struggled to benefit from their natural resources due to corruption and mismanagement.
Full question "Which circumstances have most Central African nations experienced since gaining independence? 1. corruption and ethnic conflict 2. ethnic conflict 3. pollution of the air and destruction of plants and animals 4. iron ore diamonds and natural gas 5. palm oil 6. exploiting the colonies for profit 7. Portugal 8. Central African Republic 9. Men and women eat in separate rooms. 10. poor transportation system"
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What are the positive impact that buffering will have on the environmental sustainability
Preservation of riparian supports can emphatically affect agribusiness by diminishing disintegration, further developing water quality, expanding biodiversity, and extending natural life living spaces.
Supports eliminating residue from surface spillover and diminishes centralizations of supplements and pesticides.
By carrying out transforms, you will have a more modest carbon impression and diminish the number of poisons delivered into the environment. People in the future eventually benefit from further developed air and water quality, fewer landfills, and more environmentally friendly power sources.
Streamside cushions are a significant piece of stream biological systems since they decline contamination, control disintegration, and give untamed life natural surroundings. Additionally called riparian supports, streamside cushions are normally happening in vegetated regions that run close by streams and other amphibian frameworks like lakes, lakes, and wetlands.
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describe how the thickness and age of sediments on the seafloor change with distance from a mid-ocean ridge. what can be learned from this?
The thickness and age of sediments on the seafloor change with distance from a mid-ocean ridge. Generally, the closer the distance to the ridge, the thinner the sediment will be and the younger it will be.
Explanation:
The Ocean Ridge is where new crust is formed. There would be no sediments at the time the new crust reaches the surface.The new crust is pushed away from the Ocean Ridge in both directions as newer crust is formed. This is called sea floor spreading.The crust that makes up the sea floor starts to have time to accumulate a layer of sediments as it gets older and moves away from the Ocean Ridge.Where an Oceanic Plate meets a continental plate the seafloor sediments are pushed under the continental plate and are melted and destroyed.To know more about refer here:
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why cant scientists use carbon-14 to determine the age of a fossil older than 100,000 years
Explanation:
Because of the short length of the carbon-14 half-life, carbon dating is only accurate for items that are thousands to tens of thousands of years old. Most rocks of interest are much older than this. Geologists must therefore use elements with longer half-lives.
Answer: Because of the short length of the carbon-14 half-life, carbon dating is only accurate for items that are thousands of years old. Most rocks that scientists study are much older than thousands.
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when going from a 5 to a 6 on the richter scale, what is the increase in amplitude of seismic waves?
a. 1 times
b. 2 times
c. 10 times
d. 32 times
When going from a 5 to a 6 on the Richter scale, the increase in amplitude of seismic waves is 10 times.
This means that a magnitude 6 earthquake produces seismic waves with ten times more amplitude than a magnitude 5 earthquake. The Richter scale is a logarithmic scale, which means that each whole number increase represents a tenfold increase in the amplitude of the seismic waves. For example, a magnitude 7 earthquake produces waves with 100 times more amplitude than a magnitude 5 earthquake, while a magnitude 8 earthquake produces waves with 1,000 times more amplitude than a magnitude 5 earthquake, and so on.
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in nasa's a short tour of the cryosphere, why is the snow of the rockies important to the midwest united states? group of answer choices
The snowpack of the Rocky Mountains is important to the Midwest United States because it is a major source of freshwater for the region. The snowpack gradually melts in the spring and summer, releasing water into the rivers that supply the Midwest.
The water from the Rockies helps irrigate and supply drinking water to parts of the Midwest. Without this important source of freshwater, much of the Midwest could be in danger of drought or water shortages.
Overall, the snowpack of the Rocky Mountains is a critical part of the Midwest's water cycle and helps ensure that the region is adequately supplied with the necessary water resources.
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many factors influence the frequency and volume of irrigation. which factors can be controlled by the farmer? select all that apply.
There are several factors that can influence the frequency and volume of irrigation, and some of these factors can be controlled by the farmer. The factors that can be controlled by the farmer include:
Type of crops plantedAmount of irrigation water availableType of irrigation system and management practices appliedAmount of nutrients and water needs for each cropPlanting date and densityIn addition, for the farmer to achieve maximum results, they need to learn and utilize all available irrigation techniques that maximize efficiency while minimizing water usage. Proper water management in agriculture entails efficient use of resources, including energy, land, and water, for increasing crop production.
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Rice is the staple food for over half the people in the world. What is meant by this statement?
A basic and crucial part of people's daily existence is a staple meal, item, or activity. For more than half of the world's population, rice is a staple diet.
Is rice the main food consumed by almost half the world's population?The world's major staple meal is rice. Around 80% of the world's population, or more than 50 percent, depends upon rice for food. Almost 95% of the world's rice production is made and eaten in developing nations.
It is one of the most grown crops and is frequently consumed in India. It is suitable for rice farming due to the amount of precipitation, soil fertility, and availability of irrigation. It is a vital source of food and income for the farmers.
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which type of unconformity is usually easiest to spot, since layers of sedimentary rocks are on top of igneous rocks without layers?
The type of unconformity, which is usually easiest to spot, since layers of sedimentary rocks are on top of igneous rocks without layers is called Disconformity.
What is an unconformity?
An unconformity is a contact between two groups of rock formations. An unconformity is a surface of erosion or non-deposition that separates younger from older rocks. A time gap or hiatus exists at the unconformity between the rock layers, indicating that some time has passed between the formation of the first group of rocks and the second group.
There are three types of unconformities: nonconformity, disconformity, and angular unconformity. An unconformity can be caused by tectonic events, sea-level shifts, or erosion, among other things.
A disconformity is an unconformity in which parallel layers of sedimentary rocks are separated by a break in sediment deposition or a layer of erosional material.
In a disconformity, the bedding planes of the strata above and below the unconformity are parallel, indicating a time gap in the sedimentary record.
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earthquakes at mount st. helens prior to the major eruption in 1980 were caused by blank . multiple choice question. magma rising in the volcano landslides steam explosions
Earthquakes at Mount St. Helens prior to the major eruption in 1980 were caused by magma rising in the volcano.
Magma is molten rock that originates deep within the Earth's crust and is pushed upward by the Earth's tectonic forces. This movement can cause earthquakes, as the magma moves through cracks and faults in the Earth's crust.
The other multiple choice answers are incorrect, as they would not have caused the earthquakes that were felt prior to the eruption.
Landslides, or mass movements of rock and soil, and steam explosions, or the rapid release of steam and volcanic gases, typically occur during an eruption. Therefore, these are unlikely to have caused the earthquakes prior to the eruption.
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the picture depicts a cross-section through a hurricane. which location would have the highest wind speeds?
Pressure remains lowest in the storm's eye and rises as it moves outwards. The pressure gradient is very steep along the eyewall.
Windspeed remains highest at the eye walls, and slightly higher on the hurricane's moving side of the wall.
Rainfall can be seen on the hospital rain bands and the eyewall. The eye is always warm.
Strom surge was high on the side of the wall where the hurricane-force wind was blowing.
During the winter months of the Northern Hemisphere, the Arctic is one of the coldest and darkest places on Earth.
Following the September equinox, the Earth's tilted axis and revolution around the sun reduce the amount of light and heat reaching the Arctic until no sunlight reaches the region.
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what evidence suggests that water might still flow at or beneath the martian surface today? why do we think that mars might still have subsurface liquid water today?
Evidence suggests that Mars might still have subsurface liquid water today due to spectral analysis of minerals on the Martian surface.
These spectral analyses show that there are hydrated minerals on the surface, which suggests that Mars has had liquid water in the recent past, and that it could still exist at or below the Martian surface. This is further supported by observations of features on the Martian surface that are similar to features on Earth that are caused by liquid water.
In addition, observations of the sub-surface temperatures of Mars by the InSight lander suggest that liquid water could still be present today. The temperatures in some areas are too high to be caused by ice, which suggests that they could be due to liquid water.
Therefore, there is strong evidence to suggest that Mars still has liquid water at or beneath the Martian surface today.
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a depression, created as a consequence of subsidence, that fills with sediment is a sedimentary basin. group of answer choices true false
A depression created as a result of subsidence that fills with sediment is a sedimentary basin. This is an accurate statement, and it is true.
A sedimentary basin is an area of land where subsidence occurs and deposits sediment, leading to a depression in the Earth’s surface. Sedimentary basins form through various processes such as tectonic activity, erosion, and glacial movements. When sediment accumulates in a sedimentary basin, this process is known as basin filling. The sediment that accumulates in the basin can be composed of many different types of materials, including organic matter, rocks, and minerals. Sedimentary basins often contain valuable resources, such as oil, gas, and coal.
The process of basin filling can take millions of years to complete. As the sediment accumulates and the basin becomes deeper, the basin often becomes filled with water, leading to the formation of large bodies of water, such as lakes and seas. The basin can also become filled with saltwater, creating a large salt lake. This process of sedimentation and subsidence is a key part of Earth’s history, and has been studied extensively by geologists.
Hence, the given statement is true.
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