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Q: Which of the following is an artificial ecosystem that is manmade?
  • A. Crop field
  • B. Pond
  • C. Forest
  • D. Lake
Correct Answer: Option A - Crop fields is a manmade ecosystem, which is maintained or created by human beings for their uses. Crop field is an artificial ecosystem that is manmade.
A. Crop fields is a manmade ecosystem, which is maintained or created by human beings for their uses. Crop field is an artificial ecosystem that is manmade.

Explanations:

Crop fields is a manmade ecosystem, which is maintained or created by human beings for their uses. Crop field is an artificial ecosystem that is manmade.