The Atmosphere
Atmospheric Phenomena
Living Things & the Atmosphere
Atmospheric Pollution
Random
100
The air that we breathe is mostly made of...
Nitrogen
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What is this?
Precipitation.
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Why is oxygen important for living things?
They need it to breathe.
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Is Earth's natural temperature increasing, or decreasing?
Increasing!
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Where does the earth receive heat from?
The sun
200
What is a droplet?
A tiny drop of liquid.
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What is this?
Aurora Borealis/Northern Lights
200
What is this process called?
Photosynthesis
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What are some examples of natural pollutants?
Dust in the desert, ash and gases from volcanic eruptions
200
What are examples of renewable energy sources?
Wind and solar energy
300
Besides nitrogen, what else is our air made of? (Name at least 2 others)
Oxygen, noble gases, water vapor, carbon dioxide.
300
What is atmospheric pressure?
The force, or weight, of the air.
300
True or False: Oxygen existed in the earth's first atmosphere.
False!
300
What is this picture showing?
Acid rain
300
The act of planting more and more trees to help our atmosphere is called...
Reforestation
400
How many layers does the atmosphere have?
5 layers
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What are examples of atmospheric phenomena? (Name at least 3)
Wind, clouds, fog, dew, frost, precipitation.
400
Why do plants need carbon dioxide?
To carry out photosynthesis.
400
The atmosphere retains some of the heat produced by the sun. What is this process called?
The greenhouse effect
400
What layer of the atmosphere contains the aurora borealis?
thermosphere
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What is the lowest layer of the atmosphere?
The troposphere.
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Weather is described using 6 variables. What are they? (Name at least 3)
Sunshine, temperature, atmospheric pressure, wind, humidity, precipitation.
500
The atmosphere performs two very important actions for life on earth. What are they?
1. Controls the earth's temperature by trapping the sun's heat.
2. Protects the earth by stopping meteorites and radiation.
500
What is global warming?
The increase of Earth's natural temperature because of heat trapped in the atmosphere.
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What is a cause of global warming?
1. The burning of fossil fuels, like coal and fuel.
2. Cutting down trees, reducing the amount of CO2 absorbed by trees.