Volcanic activity was more frequent in earths past then it is today

True or false

Answers

Answer 1
Answer:

I personally would say TRUE.



Related Questions

Elements bond together to make molecules essential for living things. Which of the following is used in organism as storage compounds, cell formation and also used to build macromolecules?NitrogenCarbonPhosphorusHydrogen
Plz hurry i need the answerthx
What makes the cell theory a scientific theory
Dichotomous Keys and branching diagrams organize different types of information about classification. how are these tools used differently?
HELPPPPP!FIRST CORRECT ANSWER GETS BRAINLIEST & +30 POINTS !!

Which molecule activates light reactions? ATP, chlorophyll, water, NADPH

Answers

Answer:

chlorophyll

Explanation:

What would happen if the keystone species of hummingbirds were taken out of there ecosystem?

Answers

Hummingbird predators would not have a food source, therefore competitive exclusion would occur and there'd be a decrease in hummingbird predators. There would also be an increase in the number of the hummingbird's prey since the hummingbird wouldn't be there to consume them. The absence of the species would mess up the rest of the ecosystem
the world be completely messed up. hummingbird are little innocent creatures.

How is the theory of evolution an example of a scientific theory?

Answers

Scientific method is an empirical method of knowledge acquisition, involving careful observation, formulating hypotheses based on such observations, testing deductions drawn from the hypotheses, and refinement or rejection of hypotheses based on the results of the tests.ext we have to know what “theory of evolution” we’re talking about. Let’s begin with the theory proposed by Charles Darwin in the Origin of Species.

I don’t know what “No assumptions here” in the question details is supposed to mean. Making hypotheses is part of the scientific method. Maybe it means that a hypothesis is assumed subject to verification, while an assumption is an axiom not subject to test. The scientific method makes testable hypotheses but never makes firm assumptions.

Darwin made a lot of observations. Then he made two hypotheses:

The observed variation among individuals can accumulate to produce all the differences we observe among species.

The effect of these variations on the ability of a living entity to survive and reproduce preserves some variations and eliminates others.

The heritability of variations was essential to the theory, but it was an observed fact, not an assumption or a hypothesis.


Because Scientific method is an empirical method of knowledge acquisition, involving careful

A race car travels a circular track at an average rate of 135 mi/hr. The radius of the track is 0.450 miles. What is the centripetal acceleration of the car? 300 mi/hr2 61 mi/hr2 8,201 mi/hr2 40,500 mi/hr2

Answers

The centripetal acceleration of the race car is 40500 mi/hr^2.

This can be calculated as the square of the velocity v divided by the radius r of the circular track:     
     a = v^2 / r

Substituting the given values of velocity v = 135 mi/hr and radius r = 0.450 miles, the centripetal acceleration a of the car is therefore      
     a = (135 miles/hour)^2 / (0.450 miles)        
        = 40500 miles/hour^2.

Answer:

(D) 40,500 mi/hr2

Constructive forces _____.build new land
tear down land
are not beneficial
destroy the earth's crust
---


The Hawaiian Islands were formed by what?
erosion
folding
faulting
volcanoes
--


A dome mountain forms when _____.
the earth's crust is folded
blocks of rock crack
crustal plates move away from each other
magma pushes the earth's crust upward

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Choose all the answers that apply.

Which of the following landforms are created by erosion?
sandbar
island
sand dune
beach
delta
---


A delta forms when _____.
a volcano erupt underwater
eroded sediment is deposited at a river mouth
ocean waves carry away sand and rock pieces
blocks of broken rock are lifted over one another

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What happens at subduction zones?
sediment is deposited by ocean waves
new land is formed from eroded soil
an oceanic plate sinks below a continental plate
two crustal plates move away from one another


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Which of the following statements is true?
Mountains form when two continental plates move away from each other.
New oceanic crust is formed by magma filling spaces at mid-ocean ridges.
A loess is an area of nutrient-poor soil caused by erosion.
"Hot spots" are locations where the earth's crust is very thick.

------

Answers

Answer:

1- Option A

2- Option D

3- Option D

4- Option D

5- Option B

6- Option C

7- Option B

Explanation:

Constructive forces are the forces that add new landmass on earth. They are typically formed by events such as volcanic eruptions, sediment deposition, and distortion in the crust.

The Hawaiian volcanic islands were formed due to the subduction of the Pacific plate under the NorthAmerican plate.

A dome generally forms when the magma rises up towards the surface. This hot magma lifts the land area, and subsequently with time, the magma cools and solidifies before eruption, giving rise to the formation of domes.

Beaches are formed due to the continuous erosion of the coastal rocks by the sea waves. Waves also carry sediments from the oceans to the coastal beach but it mainly erodes the rocks and sediment particles that are present on the beach area.

When sediment particles are carried by the rivers and streams and are deposited at the mouth of the river, then a delta is formed.

When an oceanic plate collides with a continental plate, then the denser oceanic plate gets subducted beneath the continental plate and forms a region of subduction where at great depth partial melting of the subducting plate takes place.

Along the mid-oceanic ridge, new crusts are added because the hot magma comes out to the surface and solidifies. This are rocks that are basaltic in nature.

One of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope

Answers

These are known as centrioles, which are microtubule organizing centers