5
QuizMultiple Choice

Freshwater and Marine Biomes — Unit test

Question 5 • 26-27 - C - RUSD Environmental Science S1

Which of the following statements is true?

Answer
A
The nitrogen cycle is the most important cycle for life.
B
The oxygen cycle is the least important cycle for life.
C
Life can be sustained without any of the cycles for life present.
D
All cycles of matter are equally important for life to be sustained.

Explanation

Matter cycles move essential materials through ecosystems, allowing organisms to reuse them. No single cycle is the most or least important, and life cannot be sustained without these cycles. Therefore, the best answer is “All cycles of matter are equally important for life to be sustained.”

AI-written and checked against the verified answer.

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