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4 years ago

Weathering is an example of an external force of change. Question 2 options: True False

Geography

2 answers:

pickupchik [31]4 years ago

7 0

TRUE that weathering is an example of an external force of change.

Explanation:

Plant and animal life, atmosphere and water are the major causes of weathering. External forces, such as weather occur beyond the earth's surface and act as a major role to change the way of humans interact with the environment.

There are two types of weathering, they are mechanical and chemical weathering. It can be generated by variation in temperature, action of water and plants. Weathering processes that change properties rocks on or near the earth's surface. It change the shape of the earth by modifying land forms.

zimovet [89]4 years ago

5 0

Answer:

The statement is True

Explanation:

The statement;

Weathering is an example of an external force of change

is TRUE.

Weathering refers to the chemical and physical processes which alter the characteristics of rocks on or near the earth's crust

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Describe 2. What is the structure of Earth's atmosphere?

sergejj [24]

The atmosphere consists of 4 layers: the troposphere, stratosphere, mesosphere, and thermosphere. The troposphere is the lowest layer of the atmosphere. This is the layer where we live and where weather happens. Temperature in this layer generally decreases with height. The boundary between the stratosphere and the troposphere is called the tropopause. Above the tropopause lies the stratosphere. In this layer the temperature increases with height. This is because the stratosphere houses the ozone layer. The ozone layer is warm because it absorbs ultraviolet (UV) rays from the sun. The mesosphere is the layer above the stratosphere.This layer also contains ratios of nitrogen and oxygen similar to the troposphere, except the concentrations are 1000 times less and there is little water vapor there, so the air is too thin for weather to occur. The thermosphere is the uppermost layer of the atmosphere. In this layer the temperature increases with height because it is being directly heated by the sun.

I got this info from North Carolina Climate Office.

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3 years ago

P and S waves from an earthquake travel at different speeds, and this difference helps locate the earthquake "epicenter" (where

Studentka2010 [4]

Answer:

(a) Since both P and S wave travels the same distance, so it can be written as: Δx = V₁t₁ = V₂t₂,

Where, V₁- Speed of S wave

V₂- Speed of P wave

t₁- time taken by S wave

t₂- time taken by P wave

Therefore, t₁ > t₂ (since, time taken by S wave is longer than P wave)

⇒ t₁ = t₂ + 1.5 min

⇒ t₁ = t₂ + 90 sec

⇒ V₁ (t₂ + 90 sec) = V₂ (t₂)

⇒ V₁t₂ + V₁ (90 sec) = V₂ (t₂)

⇒ V₂t₂ - V₁t₂ = V₁ (90 sec)

⇒ t₂ (V₂- V₁) = V₁ (90 sec)

⇒ t₂ = {V₁ (90 sec)} ÷ {(V₂- V₁)}

⇒ t₂ = {5.5 × (90 sec)} ÷ {(8.5 - 5.5)}

Therefore, t₂ = 165 sec

Since, Δx = V₁t₁ = V₂t₂

Now, Δx = V₂t₂ = (8.5 × 165 sec)

⇒ Δx = 1402 km

Therefore, Δx is approximately 1400 km (this means that the earthquake occurred at a distance of about 1400 km from the recorded seismic station)

(b) No, Only seismic station is not sufficient to detect the epicenter of an earthquake. Seismologists and geologists usually use the triangulation method in order to determine the exact location of the epicenter. This is possible by the use of three seismographs that are placed at three different locations nearby to that earthquake occurring position.

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3 years ago

He earth’s most important energy source is _____.

sattari [20]

The earths most important energy sources the sun

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4 years ago

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Annotate around the image showing plate tectonic theory to explain how the continents drifted apart.

Veseljchak [2.6K]

Answer:

The crust broke up because of the convection currents, formed tectonic plates, and is slowly pushed on the surface until it collides with another plate and subducts.

Explanation:

This image gives us the basics of how the plate tectonics theory works. The material in the upper mantle is cooler and denser than the material in the lower mantle, so it drops down and it pushes the hotter and less dense material up. This creates a circular motion in the mantle, and this motion creates enormous pressure on the crust above it and breaks it up.

As the crust is broken up, magma is rising constantly for millions of years, so the new magma pushes the old solidified one further away. This also pushes two pieces of crust away from each other. As the crusts move away, they eventually collide with another plate, and either gradually merge with it, or a subduction zone is created. In the latter, the crust moves below another crust and into the mantle, where it gets melted and recycled.

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3 years ago

True or False: Africa is a PLATEAU O True O False

STatiana [176]

This is true false to the climates and land

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4 years ago

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