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  9. Q17
Question 17

Which of the following is the effect of continuous tillage on an ecological system?

  • A.Addition of more. humus to the soil
  • B.Decrease in productivity
  • C.Increase in yield
  • D.Improved fertility
  • E.Prevention of erosion
Objective

Question details

Exam body
WAEC
Subject
Biology
Year
1996
Question no.
#17
Type
Objective
Previous · Q16The maintenance of a constant internal environment of an organism is known as Next · Q18 The most sensitive part of the retina is called

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