Structure and Composition of the Atmosphere

Question 1

Which phrase describes air density?

Revolt · Accepted Answer

equals mass divided by volume

Question 2

Which gas in Earth’s atmosphere helps living things make proteins?

Revolt · Accepted Answer

nitrogen

Question 3

Which atmospheric layer prevents meteoroids from reaching Earth’s surface?

Revolt · Accepted Answer

mesosphere

Question 4

As altitude increases, what happens to air pressure?

Revolt · Accepted Answer

It decreases.

Question 5

Which correctly lists three characteristics that are used to describe air?

Revolt · Accepted Answer

mass, pressure, density

Question 6

Which gas is most abundant in Earth’s atmosphere?

Revolt · Accepted Answer

nitrogen

Question 7

Which word describes the amount of matter an object contains?

Revolt · Accepted Answer

mass

Question 8

Which gas in Earth’s atmosphere has increased over time due to burning fossil fuels?

Revolt · Accepted Answer

carbon dioxide

Question 9

Which atmospheric layer gets warmer as altitude increases and contains the ozone layer?

Revolt · Accepted Answer

stratosphere

Question 10

Which describes one of oxygen's roles in Earth’s atmosphere?

Revolt · Accepted Answer

allows fuels to burn

Structure and Composition of the Atmosphere Answers