What happens to carbon that has been in the soil for millions of years​

Why should the united state be concerned about air pollution in china?

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat.o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat.habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.