Sagot :
Answer:
C. Atmosphere
Explanation:
Earth is surrounded by invisible gases that form a thin protective blanket that we call the atmosphere. It contains the oxygen that we breath as well as other important gases such as nitrogen, carbon dioxide, water vapor, and ozone.
Answer:
b. Ozone Layer
Explanation:
Ozone Layer is Earth "sunscreen" protecting living things from too much ultraviolet radiation from the sun.
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