Question

how do biotic and abiotic factor affect crop ratation

Answer 1

Biotic factors such as pests, insects and diseases reduce the crop production. A pest causes damage to our crops by feeding. Weeds also reduce crop productivity by competing with the main crop for nutrients and light.
Similarly, abiotic factors such as temperature, wind, rain etc. affect the net crop production. For example droughts and floods have a great impact on crops sometimes, destroying the entire crop.

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Answer 2

biotic and abiotic factors can affect the crop the crop production can go down by abiotic factors such as temperature etc and biotic factor are rodent rats etc