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What have CFC's done to Earth and its atmosphere?
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
Carbon dioxide, nitrogen, methane, water vapor were already present in the Early Earth. This statement is
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
What was the reason why plants and bacteria survive in the early Earth?
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
Early atmosphere did not have oxygen. What was the source/s of oxygen?
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
How have man's activities chnaged the compostion of our atmosphere?
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
What is the most common gas in the atmosphere?
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
In which layer of the atmosphere do you find rain, snow and clouds
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
Earth's atmosphere is divided into layers that are based upon their
true
plants and bacteria
all of the above
nitrogen
temperature gradient
formation of an ozone layer
They have polluted it with carbon dioxide and chemicals.
troposphere
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