4
QuizMultiple Choice

Structure and Composition of the Atmosphere

Question 4 • PARTA - EOP: PGCPS BIOGEOCHEM CR (FALL2026) - 798113

Which is one way that Earth’s atmosphere supports life?

Answer
A
It filters out oxygen.
B
It keeps Earth warm.
C
It increases UV radiation.
D
It provides a solid shield.

Explanation

Earth’s atmosphere helps keep the planet warm by trapping some heat that would otherwise escape into space. This warmth helps maintain temperatures that support life. It does not filter out oxygen, increase harmful UV radiation, or act as a solid shield.

AI-written and checked against the verified answer.

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