How much faster than normal extinction have humans caused extinction rates to climb?
a. 1000
b. 10
c. 1/2
d. 100

Option (A)

Explanation: Extinction refers to the vanishing of any species or object, which are not going to reappear.

The human beings, because of their activities have raised the normal extinction rate upto 1000 times more. These activities are as follows-

Burning up of fossil fuels, releasing huge mount of carbon into the atmosphere.Emitting a huge mount of toxic substances into the atmosphere, and causing various types of pollution such as air, noise, water and soil pollution.Over-grazing in the fields, over-fishing in the seas and oceansUsing of various chemical fertilizers and pesticides and losing the fertility of the soil.Mining activities also are carried out.

All these above activities are equally responsible for causing damages to the environment and the existing ecosystem, where the different plant and animal species are harmed and are vanishing at a rapid rate.

Thus, the correct answer is option (A).

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.