If anyone can answer all of these, they deserve big thanx! Last questions of the night, I also need these before 12am and it’s almost 12!

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Which of the following is not a potential result of deforestation?

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?