WAEC Agricultural Science Past Questions & Answers - Page 171

851.

The function of the mouldboard in a mouldboard plough is to

A.

Cut a horizontal line in the soil

B.

Give support to the share

C.

Invert the furrow slice

D.

Keep the equipment steady during operation

Correct answer is C

No explanation has been provided for this answer.

852.

The main sources of farm power in West Africa are

A.

Wind, solar and mechanical

B.

Human, animal and mechanical

C.

Mechanical, solar and human

D.

Electrical, mechanical and solar

Correct answer is B

No explanation has been provided for this answer.

853.

An advantage of sprinkler irrigation is that

A.

It assists farmers to raise a greater varity of crops

B.

It is easy to install

C.

Large areas of land can be irrigated

D.

It can be afforded by peasant farmers

Correct answer is C

No explanation has been provided for this answer.

854.

Which of the following effects is not due to water-logging?

A.

Inhibition of crop development

B.

Enhancement of leaching

C.

Inhibition of the activities of soil microorganisms

D.

Wilting of crop roots

Correct answer is D

No explanation has been provided for this answer.

855.

The following farming practices expose the soil to agents of erosion except

A.

Bush burning

B.

Land clearing

C.

Crop rotation

D.

Overgrazing

Correct answer is C

No explanation has been provided for this answer.