What changes in the crust do scientists look for when using seismology and seismic networks to mitigate volcanic hazards?.

Answers

Answer 1

The changes scientists do look for when using seismology and seismic networks to mitigate volcanic hazards are noise/vibrations caused by magma moving through rocks

Volcanoes are crevices in the crust of planets like the Earth, allowing hot lava, ash, and gas to escape from underground magma chambers.

On Earth, volcanoes are most commonly found where tectonic plates diverge or converge, mostly underwater. For example, mid-ocean ridges, such as the Mid-Atlantic Ridge, have volcanoes caused by divergent tectonic plates, while the Ring of Fire has volcanoes caused by converging tectonic plates.

Volcanoes can also form in areas where the crustal plate is expanding and thinning, such as the East African Rift Valley, the Wells Gray Clearwater Volcano Field in North America, and the Rio Grande Rift. Off-plate volcanic activity is hypothesized to occur from a diapir rising from the core-mantle boundary at a depth of 3,000 km on Earth.

This leads to hotspot volcanic activity, where Hawaii hotspots are an example. Volcanoes usually do not form where two structural plates pass each other.

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Related Questions

Which weather has been most likely obseved at Pembroke, Ontario, Canada over the past couple of hours

Answers

The weather features of High clouds & low precipitation will likely be observed at Pembroke, Ontario, Canada over the past couple of hours.

What is the features of High clouds & low precipitation?

An example of High clouds are cirrus, cirrostratus, and cirrocumulus while the low precipitation means the cloud that is lacking in liquid rainfall content.

Hence, the weather features of High clouds & low precipitation will likely be observed at Pembroke, Ontario, Canada over the past couple of hours.

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What are the impacts of relief on the biophysical and socio_ economic conditions of ethiopia?

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Answer:

The principal biophysical constraint for the production of cereals in Ethiopia is land degradation in the form of soil. According to Shiferaw, the rate of soil erosion is severe in the highlands of Ethiopia. Rapid population growth, cultivation on steep slopes, clearing of vegetation, and overgrazing are identified as the main factors that accelerate soil erosion in Ethiopia Biophysical effects of climate change on the production of cereals are claimed to be positive in some agricultural systems and regions, and negative in others, and these effects are claimed to vary over time. In a nutshell, The direct and indirect effects of climate change on agriculture play out through the economic system, altering prices, production, productivity, food demand, calorie availability, and, ultimately, human well-being.

The production and flow of cereals in Ethiopia are constrained by socio-economic constraints like poor infrastructure (constraining access to both agricultural inputs and markets for outputs), dominance by small-scale resource-poor farmers, shortage of draft power, low level of modern farm inputs; inefficient working habit (less working days per week) of the peasants; substantial increase in food prices; and endemic poverty, limited access tocapital and global markets, ecosystem degradation, complex disasters like war and conflicts; population growth. For instance, the availability of financial services is constraining the capacity of smallholders and emerging commercial farmers to adopt improvedagricultural practices. This includes both short-term seasonal credit for crop inputs and medium-longer-term finance for capital investments.

In each row, check the box under the compound that can reasonably be expected to be more acidic in aqueous solution, e. G. Have the larger.

Answers

H2SO3, H2SO4 and H2SO4 are more acidic.

What is acid dissociation constant?

To evaluate an acid's potency quantitatively, use the term “acid dissociation constant” (Ka). The equilibrium value computed for the ionization of an acid is called the acid dissociation constant.

H2SO3 and H2SeO3:

H2SO3 has a Ka of 1.54 x 10-2 and 2.3 x 10-3.

H2SO3 has a higher Ka value than HeSeO3. Therefore, H2SeO3's conjugate base is less stable than H2SO3's. More acidic than H2SO3.

H2SeO4 and H2SO4:

Because Se is larger than S, its conjugate base, H2SeO4, is less stable than H2SO4. More acidic than H2SO4.

H2SO3 and H2SO4:

Because its conjugate base is more stable than that of H2SO3's, H2SO4, it is more acidic.

Hence, the significance of the acid dissociation constant is aforementioned.

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a pakistani family hosting a meal of tradional food of pakistan for their neighbors is what

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A pakistani family hosting a meal of tradional food of pakistan for their neighbors is: cultural convergence.

What is cultural convergence?

Cultural convergence can be defined as the way in which people from to different culture tend to be adopt each other culture.

Hence, Based on the scenario a pakistani family is engaging in  cultural convergence by hosting a meal of Pakistan  for their neighbors .

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The occurrence of volcanoes at convergent plate boundaries is due to ______________ triggering melting in the adjacent mantle.

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The occurrence of volcanoes at convergent plate boundaries is due to the release of water from the subducted plate triggering melting in the adjacent mantle.

What is a Volcano?

This refers to the natural disaster that occurs as a result of the shift in tectonic plates, causing the release of hot lava.

Hence, we can see that when a volcano occurs at a convergent plate boundary, this is mainly as a result of the release of water from the subducted plate that causes the mantle nearby to melt.

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Retrograde metamorphism will not occur unless an increased amount of ________ is added to the system.

Answers

Answer:

water

Explanation:

Retrograde metamorphism won't happen except if an expanded measure of water is added to the framework.

Retrograde metamorphism is a kind of transformation that happens at lower temperatures and tensions after an underlying time of prograde metamorphism. It includes the adjustment of mineral collections in light of changing ecological circumstances.

For retrograde transformation to happen, an expanded measure of water (aqueous liquids) should be added to the framework. This extra water works with the breakdown of specific minerals and the development of new ones under the lower temperature and tension circumstances. Water goes about as an impetus for the synthetic responses that drive the transformative cycle in a retrograde heading, prompting the change of the stone's mineral creation.

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Industrial agriculture ________. Group of answer choices is necessary today for all cultures had no impact on agriculture permanently improved soils, providing more food from less space increased our ability to obtain more food from the same area rapidly deteriorated soils, requiring continuous movement to new croplands

Answers

Answer:

Is the production of crops and animals

Explanation:

This is often used as a chemical that fertilizes crops used on farms these harmful and dangerous antibiotics can also be used on animals.

5. What kind of precipitation occurs when air masses of different temperatures meet?
frontal
convectional
cyclical
orographic

Answers

Answer:

Frontal rainfall

Explanation:

the image above

Frontal rainfall
Explanation- studied this last unit

The Northwest Territories could apply for statehood with the Confederation when each of their populations reached __________.

Answers

The Northwest Territories could apply for statehood with the Confederation when each of their populations reached 60,000 free inhabitants, including women.

What does applying for statehood mean under the Northwest Ordinance?

It stated that each district would be eligible for statehood whenever its population matched that of the least populated current state and that each district would be able to send one representative to Congress once it reached a population of 20,000. (The Regulation of 1787 replaced this ordinance.)

Its name was changed to the Northwest Ordinance and it established a way for the territories northwest of the Ohio River, which included what would eventually become the states of Illinois, Indiana, Michigan, Ohio, Wisconsin, and a portion of Minnesota, to become independent states.

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The smallest type of internal boundary in the United States is a(n) __________ boundary. A. county B. city C. intracity D. state Please select the be

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Answer:

The smallest type of internal boundary in the United States is a(n) __________ boundary. A. county B. city C. intracity D. state Please select the be

Intercity boundary because it is the smallest

Whether an eruption will produce lava flows or pyroclastic debris depends on the viscosity of magma and the _______

Answers

Whether an eruption will produce lava flows or pyroclastic debris depends on the viscosity of magma and the gas content

What is a Volcano?

This refers to the eruption of hot lava from the surface of the earth as a result of a tectonic shift.

Hence, we can see that the two main factors that determine the content that comes out when an eruption occurs are both the viscosity of the magma and also the gas content.

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The continual washing away of the less resistant rock begins to form __________ on either side of the headlands.

Answers

The continual washing away of the less resistant rock begins to form weak areas on either side of the headlands.

What are Headlands?

This refers to the narrow piece of land that is a coastal landform that extends onto a body of water.

Hence, we can see that when headlands occur, there is the coming together of both hard and soft rocks and when this happens, there is the washing away of the less resistant rock that begins to form weak areas on either side of the headlands.

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Which of the following functions is graphed above

Answers

The function that is graphed in the image is f(x) = -4log(-x + 4).

What is deduced from the graph?

We can see that x-intercept is (3,0), when x=3, y=0, then, we use eliminate those of the 4 possible answers that could not be correct.  

Note

log (1) = 0.

First answer:

log(x + 4).  Why?  Because when x=3,

log(x + 4)=log(3 + 4)= log 7, which is NOT zero.

Second answer It is not Zero

Third answer

log(x + 4).  If x=3, we get log(7), which is not zero.

Fourth answer

f(x) = -4log(-x + 4).  When x=3, we get f(3)= -4log(-x + 4)

= -4(log[1]) = 0.

Therefore, the Option D is correct.

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Which of the following is the best definition of an ecozone?
O A. A region of Earth with plants and animals similar to neighboring
regions
OB. A region where people of similar cultural backgrounds live
C. A tropical region of Earth
OD. A region of Earth where plants and animals developed in isolation
from other regions
SUBMIT

Answers

Answer:

Answer is option A or D.

Explanation:

As we know...Ecozone is a relative term which is used in the present as it is a new concept

..we can use a simple definition to define it as integration of evolutionary history of Flora and Fauna based on communities of broad geographical location..So the obvious answer must Either be A or D.

Thanks.

How do you construct an angle bisector

Answers

Explanation:

I think it is helpful for you .?

According to Khana, what lines are most important in North America, and what does the continent need most?​

Answers

According to Khanna the lines that are important to North America are the ones that are based on connectivity.

What does Khanna say about continental lines?

This author referred to this lines as useless lines that divided territories in the world.

According to the author, what the worlds needs are the lines that are able to bring people closer such as technology for better communication and also infrastructure.

Connectivity is said to be the organizing principle of human beings instead of sovereignty.

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If you went to Greenland and drilled a hole in the ice sheet, then came back later and surveyed the hole, you would find that the shape of the hole had changed. If you asked Dr. Anandakrishnan why the shape changed, he would tell you that the ice sheet was flowing. He would be correct. What does he mean by this

Answers

Answer:

The ice is not too much colder than its melting point, and deforms something like hot rocks in the mantle or a chocolate bar in your pocket.

Explanation:

One of the primary uses for a 500-mb map is: to monitor the position of the polar jet stream. to predict surface wind speeds. to estimate surface air temperature. to determine the speed and direction of motion for a mid-latitude cyclone.

Answers

One of the primary uses for a 500-mb map is in determining the speed and direction of motion for midlatitudes cyclones.

What is  500-mb map?

500-mb map is a type of mapping system that has a constant pressure on the chart .

In this case, 500-mb map is in determining the speed and direction of motion for midlatitudes cyclones.

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what location is A (40 north 74 west and location B 76 north 80 west and location C 60 north 147 west

Answers

From mapping

A (40 north 74 west = New york city B (76 north 80 west  = the perennial ice fields (Craig Harbour)C 60 north 147 west=Pacific Ocean. This is further explained below.What is a location?

Generally, a specific spot or position on the map. The Empire State Building, for instance, may be found at a coordinate of 40.7 degrees north (latitude) and 74 degrees west (longitude) (longitude).

In conclusion, It may be found in Manhattan, New York, near the corner of 33rd Street and Fifth Avenue.

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Which atmospheric feature drives middle-latitude cyclones that produce cold and warm fronts and changing weather patterns

Answers

The low-pressure systems is the atmospheric feature that drives the middle-latitude cyclones that produce cold and warm fronts and changing weather patterns.

What is a low-pressure systems?

This weather system produces a lower pressure at its center than the areas around it and when winds blow towards its, the air rises in the atmosphere where they meet.

Hence, the atmospheric system is what drives the middle-latitude cyclones that produce cold and warm fronts and changing weather patterns.

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Do you think that for many of the poorest people in america, society is more of a caste system than a class system? why or why not?

Answers

Answer:

No. Class is an economic function that stems from having a currency and property based economy. The concept of class first emerged when humans formed civilization roughly 6000 years ago

Rationalize 2 / 2√2
Select one:
a. 1
b. 2√2 / 2
c. √2 / 2
Could someone help quick please! Thank you!!

Answers

Answer:

answer is of b no i think that but i am not sure

Answer:

   [tex]\frac{\sqrt{2} }{2}[/tex] letter c

Explanation:

You just have to multiply it to [tex]\frac{2\sqrt{2} }{2\sqrt{2} }[/tex]

equation

[tex]\frac{2}{2\sqrt{2} } *\frac{2\sqrt{2} }{2\sqrt{2} } = \frac{4\sqrt{2} }{4\sqrt{4} }[/tex]

4 over 4 is 1, and [tex]\sqrt{4}[/tex] is 2

the final answer is [tex]\frac{\sqrt{2} }{2}[/tex]

Who proposed the theory of Continental Drift?
A. Harry Hess
B. Fred Matthews
C. Charles Darwin
D. Alfred Wegener

Answers

Answer:

D.Alfred Wegener

Explanation:

In the early 20th century, Wegener published a paper explaining his theory that the continental landmasses were “drifting” across the Earth

Based on the chart, compare the populations of Europe, the Americas, China, and India between 1300 and 1400. What were the population trends in those regions?

Answers

e population of the Americas increased between 1300 and 1400. But the populations of Europe, China, and India all decreased.

what si the correct way to say hellow

A: hewowlkem

B: hellow

C: hello

D: hewello

Answers

The correct way to say hellow is option C. hello. Hence, option C. hello is the answer.

What are the simple or casual ways of greeting?

The following are the ways of greeting:

Hello: This is the most basic greeting in English.Hi: This is a shorter version of "hello". Hey: Now, "hey" is definitely more casual than "hi" or "hello". Good morning / Good afternoon / Good evening.

Therefore, the correct answer is option C. hello

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It is hello. This is a common greeting in English influenced countries and is one of the many greetings.

describe the weather conditions that one would experience if they lived polar tropical zone​

Answers

Answer:

The polar climate regions are characterized by a lack of warm summers but with varying winters. Every month in a polar climate has an average temperature of less than 10 °C (50 °F). Regions with polar climate cover more than 20% of the Earth's area.

i need help with this question!! i’ll give brainly

Answers

Answer:

Choice B

Explanation: Most ocean water is salty so we can't drink it without desalination units.

Find the length of the segment with endpoints
A (-1, 4) and B (8, - 5).

Answers

4,5 is the answer you need to put

A richter magnitude 8 earthquake is ________ times greater than a richter magnitude of 7.

Answers

Answer:

magnitude was about how big the waves were on the particular distance from the experiment on the so called reaches scale of magnitude 8 or session program was 10 times bigger than magnitude

Explanation:

the size of an earthquake increased by a factor of 10 as magnitude increase by one whole number magnet is 6.0 earthquake magnitude 7.0 is 100 times larger than magnitude 8.0 as thousand time larger than a 5.0

10 times bigger than a 7

For residents of an agricultural town, the following are viable sources of biomass fuel EXCEPT Group of answer choices wood byproducts from a lumber mill. natural gas from fracking. corn husks left over from a harvest. trees collected from the clearing of new land.

Answers

Answer:

natural gas from fracking

Explanation:

Biomass fuel is made from organic material. Natural gas is not considered a source of biomass fuel, as it itself is fuel.

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The unknown metal sulfates are hygroscopic and will absorb water from air. The unknowns must thus be kept in desiccators to remove any absorbed water. How would your results be affected if your unknown sample was not desiccated? Would this error cause your calculation of the mass percent of sulfate in the unknown to be too high or too low? Explain. Question 3 of 20Bromine is less reactive than fluorine because it is for fluorine to gain an electron please help me with this answer why do children have difficulty dissapating heat and maintaining a normal body temperature during exercise than adults The sum of series of 4+ 15 + 26 + .. + 213 Mr. Robert charges $50 per hour for math tutoring and charges $40 per hour for language arts tutoring. How many hours of math tutoring must be mixed with 5 hours of ELA Tutoring to make $45 per hour? Write an algebraic expression for this statement.A stick [tex]l[/tex] feet long is broken into two parts, one of which is twice as long as the other. How long is the shorter piece?**Please Help, Respond soon....Will mark brainliest for correct answer** You plan to deposit $5,300 at the end of each of the next 20 years into an account paying 10.8 percent interest. a. How much money will you have in the account in 40 years A firm in the market for designer jeans has some degree of monopoly power. The demand curve it faces has a price elasticity of demand of Describe the pressures in the atria and ventricles that would cause the opening of the av valves. Turn 12 = to a decimal hikers who found a human body at high altitude in the italian alps thought the man had died recently but tests indicated he was shot with an arrow more than 5,300 years ago, which of the following would be the best reason for the prolonged preservation of the body? A. the ultraviolet rays at such a high altitude caused all the body molecules to be preserved. B. the food that the person ate contained toxins that killed the bacteria that would have otherwise destroyed the body. C. the arrow wound caused blood to flow out of the body.which led the enzymes that would break down tissue to be cleared from the body. D. the body was frozen in the cold temperature of the Alps shortly after he died and remained frozen until it was found. Which of the following allows the AIDs virus.which contains RNA, to insert into the DNA of a host of T-cells after the AIDs virus enters the cell. A. reverse transcriptase an enzyme encoded by the body. B. receptor proteins located on the surface of the virus c. the phospholipids found on the envelope of the virus. D. the protein that makes up the capsid of the virus. Which of the following microorganisms lack their own metabolic pathways and can only reproduce inside of a host cell? A. bacteria. B. Helminths c. protozoa. C. viruses Which of the following chemicals is released by one type of immune cell to directly activate another type of immune cell. A. lysosomes. B. cytokines. C. perforin . D. granzymes Could someone pls explain about Pedophilic Disorder? I have a presentation about this topic.need helpssss TwT Check all that are Solutions are there inequality Immediately following world war 1, the economy in the United States A pupil scored 17/50 on a test. What percentage is this? Which of these events was not a cause of the southern colonies' shift from servitude to slavery? Find the total cost of 2.5kg of chicken at $6.10 per kg and 0.5 kg of cheese at $10.60 per kg? Kitty has invested 5500 for 3 years in a savings account. She is paid 6% per annum compound interest. How much did she have in her savings account at the end of the 3 years? Salts and sugars work to preserve foods by creating a Group of answer choices lower pH. hypertonic environment. lower osmotic pressure. hypotonic environment. depletion of nutrients