What is the part of an enzyme that directly binds to a substrate? * O active site
O amino acid
O enzyme substrate complex
O catalyst

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

-hails tea

explanation:

-t poses

request for reexamination