WAEC Agricultural Science questions

291 questions with answers and explanations. Tap an option to check yourself.

1. Question 141· Fisheries and aquaculture· WAEC

   Before stocking a new fish pond whose water is acidic, the farmer should apply

   • Asalt
   • Blime
   • Cherbicide
   • Dsand

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   Explanation and discussion

2. Question 142· Fisheries and aquaculture· WAEC

   Which freshwater fish is widely cultured in Nigerian ponds?

   • Asardine
   • Bshark
   • CClarias (catfish)
   • Dtuna

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   Explanation and discussion

3. Question 143· Fisheries and aquaculture· WAEC

   A method of preserving fish is

   • Aleaving in the sun on the ground for weeks
   • Bwatering
   • Cboiling in the pond
   • Dsmoking

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   Explanation and discussion

4. Question 144· Fisheries and aquaculture· WAEC

   Fish farming in ponds is also called

   • Aaquaculture
   • Bapiculture
   • Csericulture
   • Dhorticulture

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   Explanation and discussion

5. Question 145· Fisheries and aquaculture· WAEC

   A disadvantage of fish smoking with firewood is that it

   • Aadds water
   • Bmakes fish rot
   • Cuses up wood and can pollute
   • Dcosts nothing

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   Explanation and discussion

6. Question 146· Fisheries and aquaculture· WAEC

   Overfishing can be prevented by

   • Ausing smaller nets
   • Bregulating the mesh size of fishing nets
   • Cfishing all year round
   • Dfishing with explosives

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7. Question 147· Forestry· WAEC

   The taungya system combines

   • Amining with farming
   • Bfish farming with poultry
   • Cgrazing with irrigation
   • Dforestry with arable crop farming

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   Explanation and discussion

8. Question 148· Forestry· WAEC

   Selective exploitation of a forest means

   • Acutting down every tree
   • Bfelling only mature trees of chosen species
   • Cburning the forest
   • Dplanting new trees only

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   Explanation and discussion

9. Question 149· Forestry· WAEC

   A forest reserve is

   • Aa sawmill
   • Ba timber market
   • Cland set aside by government to conserve forests
   • Dan open hunting ground

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10. Question 150· Forestry· WAEC

    Replanting trees in an area where forest has been cut down is

    • Adeforestation
    • Breforestation
    • Cafforestation
    • Dshifting cultivation

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    Explanation and discussion

11. Question 151· Forestry· WAEC

    Which of these trees is a source of timber in Nigeria?

    • AIroko
    • Bcassava
    • Cmaize
    • Dgroundnut

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    Explanation and discussion

12. Question 152· Forestry· WAEC

    Which tree is a source of timber in Nigeria?

    • Acocoyam
    • Bcassava
    • Cplantain
    • Diroko

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    Explanation and discussion

13. Question 153· Forestry· WAEC

    Selective exploitation in forestry means

    • Aburning undergrowth
    • Bclear-felling everything
    • Cplanting new trees
    • Dfelling only mature trees of wanted species

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    Explanation and discussion

14. Question 154· Forestry· WAEC

    Taungya farming involves

    • Agrowing food crops between young forest trees
    • Bburning forests
    • Cplanting only grass
    • Drearing fish in forests

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    Explanation and discussion

15. Question 155· Forestry· WAEC

    Forests contribute to rainfall by

    • Adrying the air
    • Babsorbing all rain
    • Cblocking clouds
    • Dreleasing water vapour through transpiration

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    Explanation and discussion

16. Question 156· Forestry· WAEC

    Fuelwood is an example of

    • Aa forest product
    • Ba mineral
    • Ca fertiliser
    • Da pest

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17. Question 157· Forestry· WAEC

    A tree nursery is used in forestry to

    • Astore timber
    • Braise seedlings before transplanting them
    • Cprocess logs
    • Dkeep wild animals

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    Explanation and discussion

18. Question 158· Forestry· WAEC

    Forestry is the

    • Akeeping of bees only
    • Bgrowing of food crops
    • Crearing of fish
    • Dmanagement and use of forests and their resources

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19. Question 159· Forestry· WAEC

    A forest guard's duty is to

    • Asell timber privately
    • Bplant crops
    • Cprotect forest reserves from illegal felling and fires
    • Dhunt animals

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20. Question 160· Forestry· WAEC

    Agroforestry is the practice of

    • Acutting all trees
    • Bgrowing trees together with crops or livestock
    • Cplanting only grass
    • Dusing only machines

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    Explanation and discussion