WAEC Agricultural Science Past Questions & Answers - Page 228

1,136.

Which of the following reasons explain why fertilizers are added to soils?

A.

Prevention of erosion

B.

Increasing the organic matter content

C.

Increasing the water retention capacity

D.

Increasing the nutrient level

Correct answer is D

No explanation has been provided for this answer.

1,137.

The by-product in plant photosynthesis is

A.

Carbondioxide

B.

Carbohydrate

C.

Hydrogen

D.

Oxygen

Correct answer is D

No explanation has been provided for this answer.

1,138.

A prolonged wet season at the early stage of growth in cotton will lead to

A.

Good vegetative growth and high yield of lint

B.

Tall plant with few bolls

C.

Premature dropping of leaves

D.

Waterlogged soil which increases availability of soil nutrients

Correct answer is B

No explanation has been provided for this answer.

1,139.

Farm mechanization does not

A.

Involve the use of motorized equipment

B.

Require much capital

C.

Lead to unemployment

D.

Involve the use of only heavy machinery

Correct answer is D

No explanation has been provided for this answer.

1,140.

Calculate the area of a rectangular vegetable garden measuring 100m by 26m in hectares.

A.

0.250

B.

0.200

C.

0.125

D.

0.004

Correct answer is A

No explanation has been provided for this answer.