WAEC Agricultural Science Past Questions & Answers - Page 297

1,481.

The main source of power for subsistence equipment is

A.

Animal

B.

Machine

C.

Electricity

D.

Man

Correct answer is D

No explanation has been provided for this answer.

1,482.

The method of irrigation suitable for use on a steep slope is

A.

Sprinkler irrigation

B.

Flood

C.

Furrow irrigation

D.

Shadoof

Correct answer is D

No explanation has been provided for this answer.

1,483.

The effects of practicing crop rotation include the following except

A.

Maintaining and improving soil fertility

B.

Controlling soil erosion

C.

Preventing the build-up of pests and diseases

D.

Adding humus to the soil

Correct answer is D

No explanation has been provided for this answer.

1,484.

Fertile soil is one which

A.

Is easily drained

B.

Is well aerated

C.

Can produce a good harvest of cowpea

D.

Contains all essential plant nutrients in suitable proportions

Correct answer is D

No explanation has been provided for this answer.

1,485.

If urea fertilizer contains 46% nitrogen. calculate the amount of nitrogen in 25 kg bag of fertilizer?

A.

11.5kg

B.

13.5kg

C.

21.5kg

D.

36.5kg

Correct answer is A

No explanation has been provided for this answer.