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4 years ago

Scientists believe that _____________ is an example of an internal force that changes the Earth’s crust.

Geography

1 answer:

hram777 [196]4 years ago

4 0

Answer:

Scientists believe that plate tectonics is an example of an internal force that changes the Earth’s crust.

Plate tectonics is a theory that describes the motion of seven large plates, and many other smaller plates of the Earth's lithosphere. When they collide they can make mountains or we can feel their motion as earthquakes. Their motion is responsible for the continental shift and it made our continents look the way they look today.

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Air pressure is usually highest when the air is ?

Elanso [62]

Air pressure is usually high when you are in a high area like for example mountains

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4 years ago

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plate boundary, what is the result O A mountain belt, like the modern Himalayas 0 A continental volcanic arc like the modern And

pshichka [43]

Answer:

All the above

Explanation:

The plate boundary is the result of movements in the latest either through the divergence, convergence or the formation transform or rift valleys. The occurrence of the earthquakes and volcanic eruptions around the zones of mountain belts and various other events led to the volcanic arcs.

A Mountain belt-like system of the Himalayas in Northern India is a result of the orogenic upliftment of sediments bright from the Tethys sea and splitting of the Indian subcontinent from the Australian plate to collide with the Eurasian plate.

A continental volcanic arc forms due to the lava a magma that originates in the form mantle plums produced due to the burning of the lighter plate over the oceanic plate and volcanoes like the Andes form when the slab pulls the plate to the deep trenches.

And the san Andreas fault in California is a transform fault with dextral movements on both sides as the landmass is drifting westwards.

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3 years ago

Soil erosion is mainly due to which of the following reasons?

Ugo [173]

The correct answer is - deforestation.

Deforestation is a huge issue when it comes to soil erosion. When there's thicker vegetation the soil is in place and the erosion is minimal. This is due to the root systems of the trees, bushes, grashes, that are making a natural net inside the soil that holds it in place and doesn't allow the soil to be moved away and thus erosion to take place. But when we have a deforested landscape than the situation is the total opposite. The soil is left on its own and it doesn't have any protection from the root systems to keep in place, so with every rain it is eroding slowly and occasionally quickly when there's heavy rainfall. Most of the erosion takes place on the steeper parts.

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4 years ago

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Select the statements about the K-T boundary that are true. Select all that apply. Select all that apply. a. The K-T boundary da

AURORKA [14]

Complete Question

Select the statements about the K-T boundary that are true. Select all that apply. Select all that apply. a. The K-T boundary dates to 65 million years ago (when the dinosaurs disappeared). b. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period. c. The K-T boundary is a thin layer of clay found only in Gubbio, Italy. d. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the Marine ecosystem.

Answer:

a. The K-T boundary dates to 65 million years ago (when the dinosaurs disappeared).

b. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period.

d. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the marine ecosystem.

Explanation:

In the K-T boundary,the K represents the Cretaceous period while T represents the Tertiary period.

Geologists have said the K-T period occured 65 millon years ago and the evidence was the extinction of Dinosaurs and other species taking their place.

Some researchers have claimed that it was an asteroid that hit the Earth 65 millon years ago resulting in the wiping out of dinosaurs.

The K-T boundary can be defined as the time of separation or distinction between the Cretaceous period and the Tertiary period.

The K-T boundary separated the rock layers of the Cretaceous period from the rock layers of the Tertiary period.

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4 years ago

Mars2501 [29]

Answer:

Both explain how the movement of the Earth's crust occurs.

6 0

3 years ago