Q45
_________ ecosystems are maintained artificially by man.
A.
Man-made
AnswerB.
Marine
C.
Artificial
D.
Brackish
Answer: Option A
Solution
Answer: Option A
Solution:
Artificial ecosystems are maintained artificially by man. A pond constructed as a part of wastewater treatment plant is an example of artificial ecosystem. In these types of ecosystem, the only source of power is solar energy.