Question

Which of the following is not true for man-made ecosystem ?

• A. They are highly efficient
• B. Parks and aquarium are not man-made ecosystems.
• C. They lack the diversity of natural ecosystems
• D. They mainly comprise seasonal vegetation or one chosen crop

Answer 1

The correct option is B Parks and aquarium are not man-made ecosystems.

An ecosystem consists of all the organisms and the physical environment with which they interact.

On the basis of its origin, it is either natural or man-made (artificial).

Forest, grassland, desert, lake, pond, swamp, river, and ocean are examples of natural ecosystems while croplands, parks and aquariums are examples of man-made ecosystems.

Both the ecosystems, either natural or man-made, are very efficient in terms of their productivity, self-sustainability, and renewability.

Since it is made for commercial purposes, man-made ecosystems consist of few chosen crops and they lack natural diversity. So, the correct answer is "option A"