What is an acid? a. a substance that increases the concentration of h+ ions when dissolved b. a substance that increases the concentration of oh– ions in solution c. a substance that increases the concentration of oxygen in solution d. a substance that produces hydrogen gas when dissolved

A. A substance that increases the concentration of H+ when dissolved.

Explanation:

(APEX)

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.

the answer is c i believe