Pls help asap, will give brainliest for the best answer :)

b

Explanation:

Because of there are a few grass eating animals and a lot of grass what the point. But a ecosystem needs varaity of producers and consumers to keep it balanced.

Ecosystem B

because of the

teeming forests, cities that reuse and recycle and exist in harmony with the surrounding environments which are considered sustainable ecosystems.

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.