Structure and Composition of the Atmosphere

Question 1

Which phrase describes air density?

Revolt · Accepted Answer

equals mass divided by volume

Question 2

Which is one way that Earth’s atmosphere supports life?

Revolt · Accepted Answer

It keeps Earth warm.

Question 3

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

Revolt · Accepted Answer

mass, pressure, density

Question 4

Which phrase describes density?

Revolt · Accepted Answer

amount of mass in a certain volume

Question 5

Which gas is most abundant in Earth’s atmosphere?

Revolt · Accepted Answer

nitrogen

Question 6

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

Revolt · Accepted Answer

mesosphere

Question 7

As altitude increases, what happens to air pressure?

Revolt · Accepted Answer

It decreases.

Question 8

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

Revolt · Accepted Answer

stratosphere

Question 9

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

Revolt · Accepted Answer

carbon dioxide

Question 10

Which word describes the amount of matter an object contains?

Revolt · Accepted Answer

mass

Structure and Composition of the Atmosphere Answers