Answer: E. reforestation
Explanation:
Reforestation is a process of planting trees in an area so as to conserve the land as future forest. According to the given situation, reforestation is the practice which can be used by the biologists to grow nitrogen fixing plants in an area so as to increase the nutrient concentration of the soil which have been depleted.
I think it's nucleic acid.
Answer:
The definition of energy is the ability to do work.
One way to think abnout is whenever you have a lto of eneergy you can do a lot of work, but with little energy you can't do much work.
C. It's necessary for the survival of the individual
