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WAEC Agricultural Science 2014 Question 7

Question 7

Farm Machinery and Mechanisation

It is important to clean and grease plough discs after use to

  1. A.prevent rusting.
  2. B.sharpen the discs.
  3. C.reduce friction.
  4. D.reduce the lifespan.
Show the answer and explanation

Answer: A (prevent rusting.)

Explanation

Grease keeps air and moisture off the metal, preventing rust.