Question

Which is an example of an ecosystem?
A). your body
B). a river
C). the sun

Answer 1

B. A river because rivers have other living organisms in it and goes through a number of changes throughout the years.

Answer 2

B). a river

Step-by-step explanation:

An ecosystem is where a geographical location holds plants and animals that work together to create a sustainable way of living. Obviously organisms nor plants are going to live on the sun or your body so the only logical answer is "a river" since you have water plants and creatures.

Best of Luck!