10. Which activity completes an enzyme-controlled reaction?
A) synthesis of coenzymes by enzymes
B) initial formation of an enzyme-substrate
complex
C) separation of the enzyme and the products of
the reaction
D) destruction of the enzyme

C)

Explanation:

separation of the enzyme and the products of the reaction.

answer; i believe the correct answer to the above question is ( friction)

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.