Question

Which of the following best describes what happens to atmospheric carbon as it moves through the carbon cycle ?

A- it forms fossil fuels through the process of sedimentation

B- it combines with pollutants to become acid rain through the process of transpiration

C- it is converted into complex carbohydrates through the process of cellular respiration

D- it becomes glucose through the process of photosynthesis

Answer 1

Correct answer: "D - it becomes glucose through the process of photosynthesis"

The atmospheric carbon is absorbed by plants in the form of carbon dioxide and used in the process of photosynthesis. Photosynthesis takes 6 carbon dioxide molecules and 6 water molecules to produce a molecule of glucose and 6 of oxygen. That's where most of the atmospheric carbon is used in.