Question

Which is not a natural ecosystem?
a) desert
b) aquarium
c) forest.​

Answer 1

Answer:

Aquarium, mark me as the brainliest.

Answer 2

Answer:

b) Aquarium

Explanation:

Aquarium is not a natural ecosystem because it is not made by nature. It's closer to saying that it's a small manmade pond that's surrounded by glass. But we try to imitate nature with it as close as possible with plants, sand / gravel , fish , correct water parameters , and so on.

Natural ecosystem is a community of living and non-living organisms, where each component interacts together as a unit through biological, physical and chemical processes. The distinctiveness of natural ecosystems is that they are purely natural and their formations are not in any way influenced by human activity.

made by nature.. forest and desert are made by nature not by human.