human
Question: An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?

Choices:
A) They break down dead organisms to return nutrients to the soil.
B) They produce their own food for survival.
C) They play a role in preventing weathering and erosion.
D) They provide most of the energy to consumers.
gpt
The correct answer is 0: They break down dead organisms to return nutrients to the soil..