Question

Which of the following best describes elements of a stable ecosystem

A. the cyclical increase and decrease of a population of algae in a lake

B. a sudden decrease in a predator population in a forest

C. a steady increase in carbon dioxide levels in the atmosphere

D. the slow depletion of nitrogen in the soil of a meadow​

Answer 1

A, because the algae is not overpopulating or underpopulating the area in the lake. The fluctuation of its population keeps the algae at a manageable amount so it doesn’t overall effect the environment.

Answer 2

A

Step-by-step explanation:

it is always rising and falling in a cycle forever instead of one thing changing in the same way forever