Humans affect the phosphorus cycle mainly by the use of fertilizers and raising livestock, especially hogs. Fertilizers and hog waste are high in phosphorus, which makes its way into the soil (where it is necessary in moderate amounts) and, due to runoff, in water.Apr 27, 2012
Answer:
Chemical energy
Explanation:
Most plants collect energy from sunlight, and use this energy to synthesize carbohydrates from carbon dioxide and water through the process of photosynthesis.
Answer:
C
Explanation: it fixes nitrogen
