Which of the following statements accurately explains how Earth's atmosphere supports life?

A. Earth's atmosphere contains 78 percent oxygen, which is essential for life.

B. Earth's atmosphere contains 21 percent oxygen, which many life forms need to

survive.

C. Earth's atmosphere contains more oxygen than carbon dioxide.

D. Earth's atmosphere contains carbon dioxide, which all life forms breathe in.

Question

Shayna

17 September, 09:21

+1

Answers (2)

Know the Answer?

Dallas Hogan · Answer 1

B i know because i looked it up and my first answer was wrong

Santos Gray · Answer 2

the answer is B.

Explanation:

you may have thought that the answer is a but that is false information and C. and D. are completely wrong