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.
Answer:
Enzymes speed up a chemical reaction making the reaction easier to occur.
Answer:d.Additional evidence will change the theory of evolution into a law.
Explanation:
False. The subunits are dependent on the cell itself, and they cannot survive on their own.