Waec Agricultural Science Past Questions

Question 1861

Monocotyledonous crops include

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  • A. oil palm, rice, and plantain.
  • B. cowpea, pepper and tomato
  • C. garden egg, cassava and mango
  • D. rubber, cashew and orange
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Question 1862

Water can be conserved in the soil by

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  • A. mulching, strip cropping and cover cropping
  • B. weeding, strip cropping and clean clearing
  • C. clean clearing, mulching, and strip cropping
  • D. cover cropping, mulching and weeding
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Question 1863

Nitrogen is important in plants because it is mainly needed in

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  • A. fruit formation
  • B. root development
  • C. leaf formation
  • D. cell division
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Question 1864

Potassium deficiency in cereal crops Is indicated by

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  • A. browning of leaves Trom the tips and margins
  • B. yellowing of younger leaves
  • C. purpling of leaves
  • D. white and irregular spots on leaves
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Question 1865

The diagram below illustrates a tool used to analyse a soil sample in an experiment. Use it to answer this question.

Open photo

The diameter of the soil particle that would be retained in the part labelled II is

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  • A. 0.002 - 0.02 mm
  • B. 0.02 - 0.2 mm
  • C. 0.2 - 2.0 mm
  • D. 2.0 mm
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