Why do shells of snails and other foreign materials removed before pond levelling? Explain your answer.
a. The shells contribute water turbidity.
b. To prevent the pond for fouling.
c. The composing shells may increase alkalinity of the soil.
d. To avoid the workers' feet from incision or puncture from these shells.
Answers & Comments
Answer:
A. The shells contribute water turbidity
Explanation:
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