Which of the following pond maintenance operation will ensure adequate supply of oxygen and hygienic…

Which of the following pond maintenance operation will ensure adequate supply of oxygen and hygienic condition for fish in a pond?
  • A.
    deweeding
  • B.
    distilling
  • C.
    fertilization
  • D.
    eradication of predators
  • E.
    supplementary feeding
Correct Answer: Option A
Explanation
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