Question

a gas that plants take in (reactant) through small holes in their leaves for the process of photosynthesis.
choose an answer
1 oxygen
2 carbon monoxide
3 nitrogen
4 carbon dioxide

Explanation:

Plants take in carbon dioxide (\(CO_2\)) through stomata (small holes in leaves) for photosynthesis. The chemical equation for photosynthesis is \(6CO_2 + 6H_2O \xrightarrow{\text{light}} C_6H_{12}O_6+6O_2\). Oxygen is a product of photosynthesis. Carbon monoxide is a toxic gas not involved in photosynthesis. Nitrogen is taken up by plants in the form of nitrates (not as \(N_2\) gas for photosynthesis).

Answer:

1. carbon dioxide