Chlorine in the stratosphere is believed to come primarily from cfcs rather than from natural sources such as volcanoes because:

Chlorine in the stratosphere is believed to come primarily from CFCs rather than from natural sources such as volcanoes because the rise in the concentration of chlorine present in the stratosphere coincides with the rise in the concentration of CFCs in the same period of time. Also, there are studies which measured samples of air from volcanoes which shows that the volcanoes have a very small contribution in the amount of chlorine found in the stratosphere. 

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.

H×ph=memesand logan paul