Which of the non-metal elements enter the earth's atmosphere as carbon dioxide through
respiration and combustion?
A. Carbon
B. Oxygen
C. Mercury
D. Hydrogen
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Answer:
A.Carbon
Explanation:
Carbon is an essential element for life on Earth. ... The carbon cycle shows how atoms of carbon can exist within different compounds at different times and be recycled between living organisms and the environment. Carbon enters the atmosphere as carbon dioxide from respiration and combustion.
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