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Question 1

What is the lowest layer of the Earth’s atmosphere?

Answer 1

Troposphere

Question 2

True or False: The stratosphere contains the ozone layer.

Answer 2

True

Question 3

Fill in the blank: The layer above the troposphere is called the __________.

Answer 3

Stratosphere

Question 4

What is the primary gas found in the mesosphere?

Answer 4

Nitrogen

Question 5

Which layer of the atmosphere is known for its temperature increase with altitude?

Answer 5

Stratosphere

Question 6

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

Answer 6

Tropopause

Question 7

How many layers are there in the Earth’s atmosphere?

Answer 7

Five

Question 8

True or False: The thermosphere is the hottest layer of the atmosphere.

Answer 8

True

Question 9

What is the outermost layer of the atmosphere?

Answer 9

Exosphere

Question 10

Fill in the blank: The __________ is where most weather events occur.

Answer 10

Troposphere

Question 11

What is the main characteristic of the ionosphere?

Answer 11

It contains a high concentration of ions and free electrons.

Question 12

Which layer of the atmosphere extends from about 50 km to 85 km above the Earth?

Answer 12

Mesosphere

Question 13

True or False: The stratosphere is cooler than the troposphere.

Answer 13

False

Question 14

What is the average height of the troposphere?

Answer 14

About 8 to 15 km

Question 15

Fill in the blank: The __________ layer is where satellites orbit the Earth.

Answer 15

Thermosphere

Question 16

Which atmospheric layer is directly above the mesosphere?

Answer 16

Thermosphere

Question 17

What is the main function of the ozone layer?

Answer 17

To absorb most of the Sun’s harmful ultraviolet radiation.

Question 18

True or False: The exosphere is part of the thermosphere.

Answer 18

True

Question 19

What phenomenon occurs in the ionosphere?

Answer 19

Auroras

Question 20

Fill in the blank: The thermosphere can extend up to __________ km above the Earth.

Answer 20

600 km

Question 21

What is the role of the tropopause?

Answer 21

It acts as a barrier to limit vertical mixing between the troposphere and stratosphere.

Question 22

Which layer contains the majority of the atmosphere’s mass?

Answer 22

Troposphere

Question 23

True or False: The temperature decreases with altitude in the mesosphere.

Answer 23

True

Question 24

What is the main component of the atmosphere?

Answer 24

Nitrogen

Question 25

Fill in the blank: The __________ is where jet streams are found.

Answer 25

Stratosphere

Question 26

What is the height range of the stratosphere?

Answer 26

From about 10 km to 50 km above the Earth.

Question 27

True or False: The troposphere is thicker at the poles than at the equator.

Answer 27

False

Question 28

What happens to air pressure as you go higher in the atmosphere?

Answer 28

It decreases.

Question 29

What layer of the atmosphere contains the jet streams?

Answer 29

Stratosphere

Question 30

What are the three main types of rock?

Answer 30

Sedimentary rock, Metamorphic rock, Igneous rock ## Footnote Igneous rock is formed from the cooling and solidification of magma or lava.

Question 31

What is magma?

Answer 31

Magma is molten rock located beneath the Earth's surface. ## Footnote When magma cools and solidifies on the surface, it forms igneous rock.

Question 32

What type of rock will be formed when the magma cools on the surface?

Answer 32

Igneous rock ## Footnote Igneous rock can be classified into two types: intrusive and extrusive.

Question 33

What causes the pressure that leads to the formation of metamorphic rock?

Answer 33

Tectonic forces and overlying rock layers ## Footnote Pressure can increase due to tectonic plate movements or accumulation of sediment.

Question 34

Where does the heat come from that contributes to metamorphic rock formation?

Answer 34

From the Earth's interior ## Footnote The heat can come from nearby magma or geothermal activity.

Question 35

What is an example of a metamorphic rock?

Answer 35

Marble ## Footnote Another example is schist.

Question 36

Does marble have layers?

Answer 36

No, marble does not have layers ## Footnote Some metamorphic rocks, like schist, can have layers.

Question 37

Fill in the blank: __________ is a type of metamorphic rock.

Answer 37

Marble

Question 38

True or False: Metamorphic rock can form from sedimentary rock.

Answer 38

True ## Footnote Metamorphic processes can alter sedimentary rock under heat and pressure.