Question

plants make sugars in the presence of sunlight in a process called photosynthesis. what form of carbon do the plants take in for this process? options: carbon dioxide, glucose molecule, complex organic compounds, single carbon atoms

Explanation:

In photosynthesis, plants take in carbon dioxide ($\ce{CO_2}$) from the atmosphere. Glucose is a product of photosynthesis, complex organic compounds are also products (or built from products), and plants don't take in single carbon atoms. The reactants of photosynthesis are carbon dioxide and water, along with light energy. So the form of carbon plants take in is carbon dioxide.

Answer:

A. carbon dioxide