WAEC Biology 2018 Theory — Question 10

Question 10 of 19 from the West African Examinations Council (WAEC) Biology 2018 Theory paper, with the correct answer and a full explanation.

3.(d) State four effects of adding animal manure to garden soil.

Model answer

Replenishes the nitrate content of the soil; helps bind soil particles together; improves the water-holding properties of the soil; prevents the soil from being blown away by erosion.

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