Choose the most appropriate condition of a field if it has an increased number of earthworms in it.
A
Less fertile
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B
Well watered and aerated
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C
Presence of harmful chemicals
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D
Presence of harmful insects
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Solution
The correct option is B Well watered and aerated Earthworms help with water flow in the soil and the aeration.
It increases fertility of the soil. It dosen't affect the chemical presence in the soil and do not increase the insects.
Therefore, option B is the correct answer.