why do volcanic hazards vary in nature? (12 Marks)

Answers

Answer 1

Explanation:

cuz of topography, mantle etc

Answer 2
A volcano is a surface landform resulting from the extrusion of magma from underground as lava, ash, rocks, and gasses are erupted in various proportions. Each year, around 60 major volcanoes erupt globally. How hazardous each one is, depends on a variety of human and physical factors that interrelate to determine the level of impact on human activity that each event exerts. I will be looking at how the physical properties of a volcano, interact with human variables to make certain volcanoes more hazardous than others. This essay will incorporate exemplification from countries at different stages of development to discuss human factors and how this links with their physical geography. The scale will be primarily global; both development spread and tectonic activity are best presented in this manner.

The strength of an earthquake, measured on the Richter scale, often determines the level of damage caused by an earthquake. Therefore, it is reasonable to assume that the power of a volcanic event is illustrative of how potentially hazardous an eruption is going to be. The explosiveness can be measured by the Volcanic Explosivity Index (VEI); the higher the VEI, the greater the potential hazard. The type of magma, and ultimately the classification of volcano that is created, is a huge physical factor in determining a volcano`s explosivity. Magma comes in many forms and each chamber is unique. Therefore, a wide spectrum of lava types can occur. The viscosity of the magma is primarily determined by three factors: temperature, dissolved gasses, and the chemical make up. The hotter the magma is and the lower the silica content, the more fluid it will be and therefore the less explosive; if magma has a high level of dissolved gasses, then it is also likely to be less viscous. Thick lava, for example acid lava, has the potential to cause much larger and more explosive eruptions, therefore presenting a larger threat and increased potential for hazardous activity.

Related Questions

A farmer provides generous amounts of water to his crop to remove salts that plants do not absorb. This farming technique is an example of

flood irrigation
furrow irrigation
organic farming
spray farming

Answers

Answer:

irrigation

spray farming

What are resources? Explain the types.​

Answers

Answer:

sorry I dont know that but you can answer that from your heart

Answer:

Resources are important for human survival.

The Principle of ________ states that changes in the Earth's crust during geological history have resulted chiefly from sudden violent and unusual events.

Answers

uniformitarianism- the theory that changes in the earths crust during geological history have resulted from the action of continuous and uniform processes

How would you describe the influence of Mesopotamia's physical geography on the region?

Answers

Answer:

Physical factors that affect population distribution include altitude and latitude, relief, climate, soils, vegetation, water and location of mineral and energy resources. It is important to note that most of the physical factors influence population distribution only indirectly through climatic conditions

Explanation: Correct me if I'm wrong dude:]

What information do geologists gain from analyzing seismograph data? Question 14 options: The location of an earthquake The strength of an earthquake General plate boundary information All of the above.

Answers

Answer:

D

Explanation:

all of the above

Answer:

The answer is A.

Explanation:

The other guy is so wrong

In which order would these rocks and minerals be found in the layers of Earth from the crust to the lower mantle? eclogite, perovskite, rhyolite, stishovite stishovite, rhyolite, perovskite, eclogite stishovite, perovskite, eclogite, rhyolite rhyolite, eclogite, perovskite, stishovite.

Answers

Rhyolite, eclogite, perovskite, stishovite

I hope this is it.

how tall is mt everest?

Answers

Answer:

29,032ft

Explanation:

Question 1 of 15 Which action is a civic duty rather than a civic responsibility in the United States?

A. Serving on a jury when called

B. Volunteering to help poor children

C. Voting in presidential elections D. Staying informed about politics

BTW (no links) and pleade answer​

Answers

Answer:

A

Explanation:

A

Which religion is associated with this symbol?

Answers

Answer:

ns

Explanation:

Answer:

The symbol is called the Khanda, it's a symbol of Sikh faith.

Explanation:

The religion that this symbol is associated with is Sikhism.

If dio can stop time how powerful is that truly, time stop is very powerful and still lost so just how strong is star platinum?

Answers

Answer:

if you do  your work in class you would know

Explanation:

Answer:

Explanation:

According to DIO, the World surpassed Jotaro's Star Platinum in terms of strength and speed. Both the Stands are akin to each other. There is not much difference between the two of them. ... The World's Time Stop ability is extremely powerful, allowing DIO to freeze time to up to nine seconds (at the time of his defeat).

who is this.
A. sasuke
B. kurnai
C. kagami

Answers

Answer:

kagami

Explanation:

this is kagami Uchiha

Answer : Kagami Uchiha

Explanation : This Is Kagami Uchiha Not Sasuke Or Kurnai

what is produced by splitting the atom of a radioactive material?

A. gigantic waves
B. fossil fuels
C. nuclear energy
D. meltdown

Answers

When you split an atom it creates nuclear energy. I am starting by answering the questions I have learned in school, please let me know if it is wrong, I am trying to get my grades up. Thanks!️‍

you are walking through a forest with the greatest species diversity. this forest is located in a region

Answers

hey..

hey..The tropical rain forest has the greatest species diversity.

The tropical rainforest has the greatest species diversity. This forest is located in a region near The equator.

What is a rainforest?

A forest is a biological system where trees predominate as the main form of life. Most effective ecosystem in wildlife is a forest, where a high rates of photosynthesis has an impact on both the flora as animal systems in a web of intricate biological interactions.

A place with a significant tree population can be referred to as a forest. Numerous living things, including plants, creatures, and microorganisms, call forests home.

Greater distances from the equator, wherein natural changes in day duration and rain occur, are home to tropical moist forests. A milder monsoon season and "only" 50 inches of precipitation per year set these forests apart from subtropical rainforests.

Learn more about rainforest, Here:

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#SPJ5

At which place on the map below would volcanoes most likely occur? Please note that the letters do not represent a plate but a specific place.


Point A


Point B


Point D


Point C


please don't just put a random answer

Answers

Answer:

point c

Explanation:

I need help with #5 and #6 ASAP please and thank you

Answers

the environment shaped too much better

Identify the layer of Earth’s atmosphere where the circulation and mixing of liquids and gases produce weather.

Answers

The layer of Earth's atmosphere where the circulation and mixing of liquids and gases produce weather through the turnaround and mixing of the liquids and gases is known as the troposphere

The troposphere is the layer of the Earth's surface where the formation of weather takes place and is the place where the air turns over as there is a mixing of liquids and gases which precipitates and forms.

Weather can come in different forms such as:

SunnyCloudyRainyWindySnowy, etc

Read more here:

https://brainly.com/question/20266187

dunes that are curved and have their tails pointing into the wind are ______ dunes; dunes that appear as more than a singular type are called ______ dunes.

Answers

Dunes which are curved and have their tails pointing into the wind are

Parabolic dunes

Dunes which appear as more than a singular type are called:

Star dunes

According to the given question, we are asked to state the names and types of dunes which are curved and point towards the wind and the ones which appear as more than a singular type.

As a result of this, we can see that a sand dune is an accumulation of sand particles which are propagated by agents of air to one location and there are four main types of sand dunes of which parabolic and star dunes are part of them.

Therefore, the correct answers are parabolic and star dunes

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The Ganges empties into which body of water

Answers

Answer:

the Bay of Bengal

Explanation:

A seismograph records four earthquakes of magnitude 3.7, 3.2, 6.5 and 4.3 and then seismicity decreases. Which earthquake(s) represent (a) foreshock(s)

Answers

Foreshocks are simply known as an earthquakes that often comes before a larger earthquakes in the same location. The earthquake 3.7 and 3.2 represent a foreshock.

Foreshocks as an earthquake cannot be said to be a foreshock until after a larger earthquake in the same area occurs.

Earthquakes that fall between the ranges of 3.0 to 3.9 on the scale are said to be small or minor earthquakes.

In this type of earthquakes, one can feel the earthquake, and objects inside shaking around, but it rarely damage.

See full question below

A seismograph records four earthquakes of magnitude 3.7, 3.2, 6.5 and 4.3 and then seismicity decreases. Which earthquake(s) represent (a) foreshock(s)?

a. 3.7 and 3.2

b. 3.2 only

c. 3.7 only

d. 3.7 and 6.5

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ow could a growing young population impact Niger’s economy? Describe two potential effects that Niger must combat when facing this issue.

Answers

Answer:

Yes because more people would work.

The two potential effects is that some would rebel and some would become presidents of a revolution like the American one for example.

Explanation:

when bill and jo are inside the tornado and they look up, what do they see?

Answers

Answer:

............

Explanation:

............

When bill and jo are inside the tornado and they look up, what they see is an F5 that looked like it had shrinked dramatically.

What is the tornado about?

This is set from a movie that is named twister. It was a movie that showed the scenes from the state of Ohio

While in the tornado, due to low pressure, they find it difficult to breathe.

The f5 that they saw seemed to be a mile away from where they were.

Read more on a tornado here: https://brainly.com/question/2826797

If you were standing in Iran, in what direction would you travel in order to get to Syria?

Answers

Answer:

You would need to travel west to reach Syria

Explanation:

which factor is a primary cause of seasonal changes on earth?

Answers

Answer:

There is no answer choices?

But based on my knowledge a primary cause of seasonal changes on earth is due to earth's tilted axis which causes the different seasons.

Explanation:

Earths rotates on a axis which spins and also orbits around the sound therfore creating different seasons throughout the year.

Which of the following statements best belongs in an environmental assessment of chemical fertilizers?

A. Chemical fertilizers help to keep global temperatures low.
B. Chemical fertilizers remove impurities from the groundwater.
C. Chemical fertilizers are harmless when used in dry areas.
D. Chemical fertilizers threaten to pollute the water supply.​

Answers

Answer: chemical fertilizers threaten to pollute….

Explanation:

If the time at GMT is 11:46 am, then what will be the time at 180°E meridian

Answers

Answer:

11:46 PM

Explanation:

Trust me ik

5 ciudades más pobladas en Mexico

Answers

Answer:

Ecatepec de Morelos, Estado de México. ...

Tijuana, Baja California. ...

Guadalajara, Jalisco. ...

Puebla de Zaragoza, Puebla. ...

Ciudad Juárez, Chihuahua.

a north following river of asia name is​

Answers

Answer:

Indus and Mekong

Explanation:

On a geologic map, cratonic basins, where thick sequences of sedimentary rocks overly the Precambrian basement, show the _________ rocks toward the center of the basin.

Answers

On the geological maps in question, the cratonic basins that contain thick sequences of sedimentary rocks which overly the Precambrian basement, show the youngest rocks toward the center of the basin.

Geological maps are tools created and used by scientists to show the arrangement of the geological elements of a specific area. This can include:

Rock typesCracks and faultsMineralsGroundwaterAges

and much more, depending on the area and detail of the map created.

On a detailed geo-map, we can understand not only the area we are initially standing on but also where to find geological areas with similar sediment compositions and information on the age of the rocks. This is done due to the way the map stacks the units in terms of age, from the youngest at the top to the oldest at the bottom.

Cratonic basins are areas where geological elements are widely distributed and often filled with shallow water as well as sedimentary rocks. The rocks at the center of these basins show the youngest rocks at the center due to the previously mentioned aging sequence used by the maps.

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Where is an earthquake likely to occur? Question 13 options: wetlands abysmal plain plate boundaries Kansas.

Answers

Answer:

plate boundaries

Explanation:

Do you think cities and states should do more to prepare for earthquakes, why or why not?

Answers

you slow just like your mom and family thats why if you stop playing and did your school work you would know duhhh

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