Quiz about Earth's Layers

Question 1

What is the outermost layer of the Earth called?

Accepted Answer

Crust

Answer

Mantle

Answer

Outer Core

Answer

Inner Core

Question 2

What is the main component of the Earth's outer core?

Accepted Answer

Liquid iron

Answer

Solid iron

Answer

Silicate rocks

Answer

Granite

Question 3

Which layer of the Earth is solid and composed mainly of iron?

Accepted Answer

Inner Core

Answer

Crust

Answer

Mantle

Answer

Outer Core

Question 4

Which layer of the Earth is the thinnest?

Accepted Answer

Crust

Answer

Mantle

Answer

Outer Core

Answer

Inner Core

Question 5

What is the primary reason the inner core is solid despite high temperatures?

Accepted Answer

High pressure

Answer

Low pressure

Answer

Low temperature

Answer

High density

Question 6

What is the term for the large sections of the Earth's crust that move over the mantle?

Accepted Answer

Tectonic Plates

Answer

Continental Shelves

Answer

Oceanic Ridges

Answer

Volcanic Arcs

Question 7

Which layer of the Earth is known for its plasticity, allowing tectonic plates to move?

Accepted Answer

Asthenosphere

Answer

Crust

Answer

Outer Core

Answer

Inner Core

Question 8

Which layer of the Earth is the thickest?

Accepted Answer

Mantle

Answer

Crust

Answer

Outer Core

Answer

Inner Core

Question 9

What is the name of the supercontinent that existed around 300 million years ago?

Accepted Answer

Pangaea

Answer

Gondwana

Answer

Laurasia

Answer

Eurasia

Question 10

Which layer of the Earth is directly beneath the crust?

Accepted Answer

Mantle

Answer

Outer Core

Answer

Inner Core

Answer

Lithosphere

Question 11

Tectonic plate

Accepted Answer

Tectonic plates are large, rigid pieces of the Earth's lithosphere that move and interact.

Answer

Tectonic plates are the atmospheric layers that protect the Earth from solar radiation.

Answer

any one of the several large, separately moving sections of the Earth's surface that glide over the mantle.

Answer

Tectonic plates are small, flexible pieces of the Earth's crust that do not move.

Question 12

Continental drift

Accepted Answer

Continental drift is the movement of the Earth's continents relative to each other.

Answer

Continental drift refers to the sinking of oceanic plates.

Answer

Continental drift is the process of continents merging into one landmass.

Answer

Continental drift describes the rotation of the Earth on its axis.

Question 13

fault

Accepted Answer

a long break in a body of rock or the crust of the earth. Usually the layers of rock are displaced on either side of the break.

Answer

A breakthrough in scientific understanding.

Answer

A theory that has been universally accepted.

Answer

A method for improving scientific accuracy.

Question 14

crust

Accepted Answer

the rocky outer layer of a planet or moon; the layer of the Earth above the mantle.

Answer

A type of cheese.

Answer

The core of a planet.

Answer

The process of baking bread.

Question 15

asthenosphere

Accepted Answer

The asthenosphere is a semi-fluid layer of the Earth's mantle that allows tectonic plates to move.

Answer

The asthenosphere is a layer of the Earth's crust that contains water.

Answer

The asthenosphere is a solid layer that does not allow movement.

Answer

The asthenosphere is the outermost layer of the Earth.

Question 16

How does the composition of the Earth's outer core differ from the inner core?

Accepted Answer

The outer core is liquid, while the inner core is solid.

Answer

The outer core is solid, while the inner core is liquid.

Answer

The outer core is composed of silicate minerals, while the inner core is metallic.

Answer

Both the outer and inner cores are solid.

Question 17

Which one is the most common elements in Earth's crust?

Accepted Answer

Oxygen

Answer

Nitrogen

Answer

Silicon

Answer

Argon

Question 18

Why is the crust considered the most important layer for life on Earth?

Accepted Answer

It is where all life exists.

Answer

It is the hottest layer.

Answer

It contains all the water and air.

Answer

It is the largest layer.

Earth's Layers

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