2
QuizMultiple Choice

Biosphere — Quiz

Question 2 • Earth and Space Science

Assume that the sulfur conversion rate at site Gamma increased to 700 μmol / m squared /hr. What would most likely happen to biomass supported at that site?

Answer
A
It would stay the same because biomass depends primarily on pressure.
B
It would likely decrease due to microbial overproduction.
C
It would likely increase as more energy becomes available.
D
It would decrease unless temperature also increased.

Explanation

A higher sulfur conversion rate means more chemical energy is being made available to microbes at site Gamma. With more energy available, the microbes can support greater biomass, so it would most likely increase. This matches choice C, “It would likely increase as more energy becomes available.”

AI-written and checked against the verified answer.

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