Atmosphere Unit 3 Lesson 2 pages 146-151

Air is in constant motion. As air rises higher into the atmosphere, what happens to the air pressure as the elevation increases?

It decreases.

carbon dioxide

Look at the following image of a greenhouse. A greenhouse is a building where plants are cultivated. It traps some of the incoming solar radiation and, therefore, becomes warmer than the surrounding environment. Which gas acts similarly to this greenhouse in its effect on the atmosphere?

Ozone is a gas found mostly in the upper atmosphere. What is the main benefit of ozone?

Ozone filters out ultraviolet radiation from the sun and shields Earth from some of this harmful energy.

nitrogen

The atmosphere is an important part of what makes Earth livable. Refer to the following circle graph to answer the following question. The graph shows the relative abundance of gases in Earth's atmosphere. Which gas corresponds to label A in the figure?

layer 1

The following diagram shows the four layers of the atmosphere. In which layer does most weather happen?

The gases that make up Earth's atmosphere are commonly referred to as air. Air consists of major gases and trace gases. What is air?

a mixture

The atmosphere exerts a force (pressure) on Earth. Why is this true?

because air has mass

The gases that make up Earth's atmosphere are commonly referred to as air. Air consists of major gases and trace gases. What are the two most abundant gases in the atmosphere?

nitrogen and oxygen

Much of the ultraviolet radiation from the Sun is absorbed in the upper atmosphere. Which molecule is responsible for this?

ozone

The atmosphere is the boundary between Earth and outer space. What is the atmosphere?

the layer of gases that surrounds Earth