The answer is C cardiopulmonary resuscitation.
Answer:
It’s impossible to know what would happen
Explanation:
If contaminated water is pumped form an aquifer, cleaned and pumped back, it would be impossible to know what would happen unless the source of the contaminant is known.
<u>If the source of the contaminant is known</u> and removed before the water is pumped back into the acquifer, the water would be clean and stay clean provided that all the water was initially pumped off. If the source of the contaminant is not known, it would be difficult to predict what would happen.
The correct answer is A. They ensure that the ecosystem is not stripped entirely of its vegetation
A. Nucleic acids are monomers which are made up of carbon sugar, a phosphate group and a nitrogenous base.
