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Earth and Its Atmosphere
Earth's atmosphere works like a shield. Without this shield, our planet would be about 33 degrees Celsius warmer than it is now and
would not be able to support lifel The atmosphere blocks most of the harmful rays from the sun and traps heat within so that our
days are not too hot and nights are not too cold.
Read about Earth and its atmosphere and use the key search terms to find more information. Then answer the questions below.
Key search terms: Earth, atmosphere, layers of atmosphere
For further information on Earth and its atmosphere, refer to the following resources:
• Troposphere
Part A
What is the composition and percentage of the gases in Earth's atmosphere?
BI y X X Font Sizes - A - A E ZEZ
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Print Earth and Its Atmosphere Earths atmosphere works like a shield Without this shield our planet would be about 33 degrees Celsius warmer than it is now and class=

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Answer:

nitrogen 78% oxygen 21%   argon 0.9% carbon dioxide, nitrous oxide, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.

Explanation: