Question

Give an example of a low diversity man made ecosystem that has high productivity

Answer 1

MAN MADE ECOSYSTEMS OF $\blue{Wheat\:and\:paddy}$ARE THE BEST EXAMPLES OF IT


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Answer 2

A crop field is an example of a low diversity manmade ecosystem because the crops are grown by men and they are all similar so less diversity high productivity is achieved by  growing many crops over an area