Chemistry

Question 1

What are the five layers of the Earth’s atmosphere?

Answer 1

Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

Question 2

Which layer of the atmosphere is closest to the Earth?

Answer 2

Troposphere

Question 3

True or False: The Stratosphere contains the ozone layer.

Answer 3

True

Question 4

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

Answer 4

Nitrogen

Question 5

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

Answer 5

Stratosphere

Question 6

What is the primary function of the ozone layer in the Stratosphere?

Answer 6

To absorb and protect against harmful ultraviolet (UV) radiation.

Question 7

Which layer of the atmosphere is known for its temperature inversion?

Answer 7

Stratosphere

Question 8

What gases make up approximately 21% of the Earth’s atmosphere?

Answer 8

Oxygen

Question 9

Multiple Choice: Which layer of the atmosphere is where most weather occurs? A) Stratosphere B) Troposphere C) Mesosphere D) Thermosphere

Answer 9

B) Troposphere

Question 10

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

Answer 10

True

Question 11

What is the main characteristic of the Exosphere?

Answer 11

It is the outermost layer where atmospheric particles are extremely sparse.

Question 12

Fill in the blank: The __________ is the layer of the atmosphere where meteors burn up upon entering.

Answer 12

Mesosphere

Question 13

What gas is a greenhouse gas found in the atmosphere?

Answer 13

Carbon dioxide

Question 14

Which layer of the atmosphere contains the ionosphere?

Answer 14

Thermosphere

Question 15

What is the approximate altitude range of the Troposphere?

Answer 15

0 to 12 km (0 to 7.5 miles)

Question 16

Multiple Choice: Which layer of the atmosphere extends from about 50 km to 85 km? A) Troposphere B) Stratosphere C) Mesosphere D) Exosphere

Answer 16

C) Mesosphere

Question 17

What are the two most abundant gases in the Earth’s atmosphere?

Answer 17

Nitrogen and Oxygen

Question 18

True or False: The Stratosphere is characterized by a decrease in temperature with altitude.

Answer 18

False

Question 19

What is the role of the Thermosphere in communication technology?

Answer 19

It reflects radio waves back to Earth.

Question 20

Fill in the blank: The __________ layer is where the auroras occur.

Answer 20

Thermosphere

Question 21

What is the approximate altitude range of the Exosphere?

Answer 21

Above 600 km (373 miles)

Question 22

Multiple Choice: Which gas is a significant contributor to acid rain? A) Methane B) Nitrogen C) Sulfur dioxide D) Argon

Answer 22

C) Sulfur dioxide

Question 23

What is the primary source of the Earth’s atmospheric oxygen?

Answer 23

Photosynthesis by plants and phytoplankton.

Question 24

True or False: The Mesosphere is the coldest layer of the atmosphere.

Answer 24

True

Question 25

What is the significance of the Tropopause?

Answer 25

It acts as a boundary between the Troposphere and Stratosphere.

Question 26

Fill in the blank: The __________ is the layer where the temperature increases with altitude due to solar radiation.

Answer 26

Thermosphere

Question 27

What is the main composition of the Exosphere?

Answer 27

Hydrogen and Helium