One unique feature of stratosphere is that it contains a layer of ozone gas, which protect us from the sun's rays.
Answer:
d) the ability to withstand environmental extremes
Explanation:
An enzyme is a protein and when that enzyme is denatured because of high level or lower level of pH it therefore cannot carry out its function and it is best Carried out at the pH of seven
I think it is D) Both processes involve energy transformations
hope this helps:)
