WAEC Agricultural Science Past Questions & Answers - Page 83

411.

Lost soil nutrients can be replenished by the following methods except

A.

Organic manuring

B.

Fertilizer application

C.

Continuous grazing

D.

Cover cropping

Correct answer is C

No explanation has been provided for this answer.

412.

Which of the following statement is a disadvantages of decaying organic matter in soils?

A.

Bacterial and fungal growth is enhanced

B.

Minerals in organic matter are released into the soil

C.

Physical condition of soil is enhanced

D.

Water-holding capacity of soil is improved

Correct answer is A

No explanation has been provided for this answer.

413.

The most limiting factor affecting land availability for agriculture in urban settlements is

A.

Soil type

B.

Topography

C.

Climate

D.

Population pressure

Correct answer is D

No explanation has been provided for this answer.

414.

Land is said to be a fixed asset in Agriculture. This means that

A.

Its features and topography are fixed

B.

Soil nutrients and its vegetative cover can be replaced

C.

Its size remains fixed over time

D.

Its micro organic composition is constant over time

Correct answer is A

No explanation has been provided for this answer.

415.

Crop rotation is often used in maintaining soil fertility because

A.

All crops grown, add nutrient to the soil

B.

Some of the crops fix nitrogen in the soil

C.

Crops grown are ploughed into the soil

D.

The crops are rotated on different farmlands

Correct answer is B

No explanation has been provided for this answer.