The Earth

Question 1

What are the three main types of rocks?

Answer 1

Igneous, sedimentary, and metamorphic.

Question 2

True or False: The rock cycle is a continuous process.

Answer 2

True.

Question 3

What process involves the transformation of sediment into sedimentary rock?

Answer 3

Lithification.

Question 4

Fill in the blank: The rock cycle begins with _______.

Answer 4

Igneous rock.

Question 5

Which type of rock forms from cooled magma or lava?

Answer 5

Igneous rock.

Question 6

What is the primary agent of erosion?

Answer 6

Water.

Question 7

What process converts existing rock types into metamorphic rock?

Answer 7

Metamorphism.

Question 8

Multiple choice: Which of the following is NOT a part of the rock cycle? A) Melting B) Cooling C) Photosynthesis D) Erosion

Answer 8

C) Photosynthesis.

Question 9

What is the role of heat and pressure in the rock cycle?

Answer 9

They cause metamorphism of rocks.

Question 10

True or False: Sedimentary rocks are often formed in layers.

Answer 10

True.

Question 11

What is the term for the process of breaking down rocks into smaller pieces?

Answer 11

Weathering.

Question 12

Fill in the blank: The _______ is the layer of gases surrounding the Earth.

Answer 12

Atmosphere.

Question 13

What are the four main layers of the Earth’s atmosphere?

Answer 13

Troposphere, stratosphere, mesosphere, and thermosphere.

Question 14

Multiple choice: Which layer of the atmosphere contains the ozone layer? A) Troposphere B) Stratosphere C) Mesosphere D) Thermosphere

Answer 14

B) Stratosphere.

Question 15

What is the primary function of the atmosphere?

Answer 15

To protect life on Earth by filtering harmful solar radiation.

Question 16

True or False: The troposphere is the highest layer of the atmosphere.

Answer 16

False.

Question 17

What gas is most abundant in the Earth’s atmosphere?

Answer 17

Nitrogen.

Question 18

Fill in the blank: The _______ is the layer of the atmosphere where weather occurs.

Answer 18

Troposphere.

Question 19

What is the boundary between the troposphere and the stratosphere called?

Answer 19

Tropopause.

Question 20

Multiple choice: Which layer of the atmosphere is characterized by decreasing temperatures with altitude? A) Troposphere B) Stratosphere C) Mesosphere D) Thermosphere

Answer 20

C) Mesosphere.

Question 21

What phenomenon occurs in the thermosphere due to solar activity?

Answer 21

Auroras.

Question 22

True or False: The atmosphere is composed of both gases and particles.

Answer 22

True.

Question 23

What is the process by which water vapor in the atmosphere condenses into liquid water?

Answer 23

Precipitation.

Question 24

Fill in the blank: The _______ is the layer of the atmosphere closest to Earth’s surface.

Answer 24

Troposphere.

Question 25

What role does the atmosphere play in regulating Earth's temperature?

Answer 25

It acts as an insulator, trapping heat.

Question 26

Multiple choice: Which gas is responsible for the greenhouse effect? A) Hydrogen B) Oxygen C) Carbon Dioxide D) Helium

Answer 26

C) Carbon Dioxide.

Question 27

What is the primary source of energy for the Earth's atmosphere?

Answer 27

The Sun.