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100

All layers of the atmosphere are important. True or false 

True

100

What is the gas fire needs to be able to burn

Oxygen 

100

As air pressure decreases does the density of air decrease or increase. 

Decrease as air pressure decreases the density decreases 

100

The hottest layer of the atmosphere is 

Ionosphere or Thermosphere 

200

Which gas is the most abundant in dry air?

Nitrogen 

200

Harmful substances in the air, water, or soil are called

Pollutants

200

You need mass and volume to calculate density. True or false 

True you need both mass and volume to determine density 

200

The otter most layer of the atmosphere where satellites orbit is called 

Exosphere 

300

What are the main 2 gasses in dry air?

Nitrogen and Oxygen 

300

Acid rain is rain with no acid, true or false

False Acid rain is rain with more acid than normal 

300

Lower altitudes have higher air pressure  true or false 

True there is higher air pressure at lower altitudes 

300

The coldest layer of the atmosphere where meteors burn up is

Mesosphere 

400

What is Smog

Brown haze that forms in cities 

400

Is the amount of water vapor higher in the desert or tropical rain forest?

Tropical Rain Forest 

400

Elevation or the distance above sea level is called

Altitude 

400

This layer of the earth has the ozone layer and planes fly here. 

Stratosphere 

500

What are 3 sources of air pollution?

Factories Vehicles Wildfires 


500

The layers of air and gasses around the earth is called what. 

Earths Atmosphere 

500

What is the name of the instrument used to measure changes in air pressure called?

Barometer 

500

The layer of the atmosphere closest to the earth where we live is called

Troposphere