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.
Their bodies are made for that temp and climate and landscape
I think it's the last one: The statement is considered pseudoscience because her advice involves an opinion.
I would say d,c sorry if im wrong