WAEC Agricultural Science Past Questions & Answers - Page 7

31.

The diagrams below illustrate different sources of farm power. Study them and answer the question.

Which of the illustrated sources of farm power decrease in efficiency due to constant use?

A.

II and III only

B.

I and III only

C.

I and II only

D.

I, II and III

Correct answer is D

I, II and III will decrease in efficiency due to constant use.

32.

The diagrams below illustrate different sources of farm power. Study them and answer the question.

The machinery illustrated in diagram III could be used to power
I. Planters
II. Dryers
III. Sprayers

A.

II and III only

B.

I and III only

C.

I and II only

D.

I, II and III

Correct answer is D

I, II and III. The tractor can be used to power planters, dryers, and sprayers. Tractors are versatile and powerful agricultural machines that can perform various tasks on the farm, including planting, drying, and spraying.

 

33.

The diagrams below illustrate different sources of farm power. Study them and answer the question.

Which of the illustrated sources of farm power is the cheapest?

A.

II

B.

III

C.

IV

D.

I

Correct answer is D

I is the cheapest because it uses crude tool.

34.

Rural-urban migration of farm labour could be prevented by

A.

Increasing the cost of acquiring farmland

B.

Employing more extension agents for farmers

C.

Increasing the size of farmland for cultivation

D.

Establishing agro-based industries in villages

Correct answer is D

stablishing agro-based industries in villages can help prevent rural-urban migration of farm labor by providing additional job opportunities and income sources for the rural population. Agro-based industries are those that process and add value to agricultural products. By setting up such industries in villages, farmers and rural workers can find employment locally, reducing the need to migrate to cities in search of jobs.

35.

Day-neutral crops are crops that produce flowers regardless of

A.

Day length being longer than the length of night

B.

Extremely low temperature

C.

Amount of sunlight received by flowering plants

D.

Extremely high temperature

Correct answer is A

Day-neutral crops, also known as non-photoperiodic crops, are plants that produce flowers independently of the daylength. Unlike short-day and long-day plants, which require specific daylength conditions to flower, day-neutral crops are not influenced by the length of the day or night.