Answer:
Using the food chain which originates from the sun's energy.
Explanation:
The term being describe above is the hormonal method in which it prevents the egg from reaching the ovaries to prevent the women from being pregnant during intercourse. There are different types of hormonal methods being used, and it does not only prevent eggs in reaching ovaries but it prevents also sperm in reaching the uterus.
Answer:
A, the populations of producers and decomposers should be stable
Explanation:
The other three do not fit, only reasonable one is A
