Earth's Atmosphere and Composition

Earth's Atmosphere Review

Multiple Choice

Anthony uses pieces of cardboard and rods to make a model of the layers of Earth's atmosphere and labels the layers W, X, Y, and Z. In which layer of the model would most of the weather likely occur?

• Layer W

• Layer X

• Layer Y

• Layer Z

Multiple Choice

In which atmospheric layer does all weather occur?

• exosphere

• stratosphere

• thermosphere

• troposphere

Multiple Choice

How does the ozone layer help life on Earth?

• It produces oxygen for the atmosphere

• It protects Earth from meteors

• It absorbs damaging ultraviolet radiation from the Sun

• It reflects most of the Sun's radiation to keep the planet cool

Multiple Choice

Sanori collects information about the order of the different layers of the atmosphere and makes a model, as shown. She wants to add a weather system to the model. To which layer should she add the weather system?

• mesosphere

• thermosphere

• troposphere

• stratosphere

Multiple Choice

Which diagram shows the correct sequence of Earth's atmosphere layers?

Multiple Choice

What atmosphere layer contains ozone?

• exosphere

• mesosphere

• stratosphere

• troposphere

Multiple Choice

Earth's atmosphere is composed of different gases in different amounts. The table shows the relative amounts of gases present in Earth's atmosphere. Which graph most accurately represents the data given in the table?

Multiple Choice

When a person climbs a mountain, what happens to the air pressure around him?

• It decreases. 

• It increases

• It remains constant

• It decreases, then increases

Multiple Choice

Where does the greatest atmospheric pressure occur?

• mesosphere

• stratosphere

• thermosphere

• troposphere

Multiple Choice

What are the two most common gases found throughout the atmosphere layers?

• carbon dioxide and oxygen

• ozone and water vapor

• nitrogen and oxygen

• carbon dioxide and nitrogen