Question

standard sc.912.e.7.1 question: what is one way that matter moves through the carbon cycle? a. volcanic activity removes carbon from the air after an eruption and incorporates it into bedrock through the rock cycle. b. plants use carbon from the atmosphere for photosynthesis and release carbon back into the atmosphere through respiration. c. the breakdown of dead organisms absorbs carbon from the soil and the carbon gets reformed into rocks and minerals. d. the oceans take in more carbon through diffusion than they can hold, so some of the carbon gets released through osmosis. step three: answer the question, and explain why each incorrect answer choice is wrong. a. b. c. d.

Explanation:

Step1: Analyze option A

Volcanic activity releases carbon into the air, not removes it from the air into bedrock in the way described.

Step2: Analyze option B

Plants take in carbon - dioxide ($CO_2$) from the atmosphere for photosynthesis ($6CO_2 + 6H_2O
ightarrow C_6H_{12}O_6+6O_2$) and release $CO_2$ back into the atmosphere through respiration ($C_6H_{12}O_6 + 6O_2
ightarrow6CO_2+6H_2O$), which is a valid part of the carbon - cycle.

Step3: Analyze option C

The breakdown of dead organisms releases carbon into the soil or atmosphere, not absorbs carbon from the soil to form rocks and minerals.

Step4: Analyze option D

Oceans release carbon through diffusion, not osmosis. Osmosis is the movement of water across a semi - permeable membrane, not related to carbon release in the context of the carbon cycle.

Answer:

B. Plants use carbon from the atmosphere for photosynthesis and release carbon back into the atmosphere through respiration.