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Agricultural Science Past Questions and Answers

Waec Agricultural Science Questions

Question 196:

The most important soil micro-organisms concerned with decay and nutrients-recycling are

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A Bacteria and fungi
B Fungi and algea
C Alga and actinomyces
D Actinomyces and bacteria
E Bacteria and algea

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Question 197:

The most important soil micro-organisms concerned with decay and nutrients-recycling are

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A Bacteria and fungi
B Fungi and algea
C Alga and actinomyces
D Actinomyces and bacteria
E Bacteria and algea

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Question 198:

the nutrient content of soil may be influenced by the following except

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A Harrowing
B Topography
C Cropping
D Fallowing
E Grazing

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Question 199:

What happens to the nitrogen and sulphur contents of vegetation when burning is used as a means of lans clearing? They

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A Are released by burning and lost as gases
B Remain in ash as nitrates and sulphates
C Raise the PH of an acid soil
D Are released into the soil thus increasing the nutrients of the soil
E Activate the soil microbes afetr burning

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Question 200:

Which of the following does not occur as a result of poor drained soil?

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A Mottling near the top
B Decrease in rooting depth
C Change in colour of the subsoil
D Decrease in organic matter content
E Increase in oxygen level of the soil

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