Precipitation needs to happen to keep the water cycle balanced
Answer:
Because the element carbon forms the backbone of the molecules that make up cells, one of the most important biogeochemical cycles to life on Earth is the carbon cycle. ... Carbon moves from living things back to the environment as all types of organisms use some of their food molecules as a source of energy.
Explanation:
Food web provides a better model of an ecosystem and model of many different consumers
Carbon dioxide because every other option requires an input.
