The Atmosphere

The condition of Earth's atmosphere at a particular time and place

• atmospere

• weather

• energy

• troposphere

envelope of gasses that surrounds the planet

• atmosphere

• troposphere

• weather

• water vapor

Earth's atmosphere consists of all of the following except

• nitrogen

• oxygen

• carbon dioxide

• silicon

The most abundand gas in the atmosphere is

• oxygen

• carbon dioxide

• nitrogen

• other gases

The second most abundant gas in Earth's atmosphere is

• nitrogen

• oxygen

• carbon dioxide

• other gases

Which gas is necessary in order for fire to burn?

• nitrogen

• oxygen

• carbon dioxide

• other gases

Which gas must plants have to produce food?

• nitrogen

• oxygen

• carbon dioxide

• other gases

Together, oxygen and nitrogen make up what percentage of dry air?

• 79

• 89

• 95

• 99

What forms when water vapor condenses out of the air to form tiny droplets of liquid water or crystals of ice?

• atmosphere

• glaciers

• gases

• clouds

Events in one part of the atmosphere affect other parts of the ____________.

• troposphere

• atmosphere

• ionosphere

• weather