An earthworm lives and reproduces in the soil. It aerates and adds organic material to the soil. The earthworm is a source of food for other organisms. All of these statements together best describe:.
A. a habitat
B. a niche
C. nutrients for autotrophs
D. competition

B.niche is the correct answer.

Explanation:

The niche includes the role of the organism in the ecosystem and how the organisms interact with different organisms and also its function in recycling the nutrients.Niche is a position of species in the area of plants and animals.Every garden requires earthworms they fertilize and aerate the soil with their dirt, waste and different organic matter.

It should be at the center of any map going vertically: the prime meridian, as it passes through greenwich,  england, is considered 0 degrees longitude