1. standard metric unit of length
liter
2. a proposed explanation for a scientific problem
meter
3. standard unit of volume
mass
4. the curved top surface of a liquid column
meniscus
5. a quantity in an experiment that remains unchanged or constant
hypothesis
6. amount of matter in an object
control

Not sure what you mean by this question

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.

Iwould say overuse ( but not 100% sure ) in the u.s. we tend to overuse water by leaving it running, throwing it away, taking long showers, etc.

Okay cool  so what is the question?