A. The amount of carbon dioxide a person releases into the atmosphere
Answer: a community
Explanation:
an organism is one
a community is a small group
a niche is what the animal does
a population is the entire species
One buried in mud would become a fossil
Answer:
Earth's atmosphere is roughly 78 percent nitrogen and 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases. Nowhere else in the solar system is there an atmosphere loaded with free oxygen, which is vital to one of the other unique features of Earth: life.
