JAMB Agricultural Science Past Questions & Answers - Page 36

176.

Which of the following is not a role of science and technology in agricultural development in Nigeria?

A.

Production of chemical fertilizers

B.

Pest and diseases control

C.

Harvesting, processing and packaging

D.

Poor transportation network

Correct answer is D

Poor transportation network or total lack of good roads makes distribution of produces to the market very difficult, and this leads to wastage

 

177.

A biotic factor influencing agricultural production is

A.

Rainfall

B.

Predator

C.

Soil structure

D.

Wind

Correct answer is B

Biotic factors are the living organism like predators ,micro organism,while abiotic factors are the Non living component like sun ,rainfall ,wind etc.

178.

The following are solutions to poor transportation network experienced by farmers except

A.

Construction of new roads to open up the rural areas

B.

Provision of motor vehicles, boats and trains to facilitate distribution of farm products

C.

Reduction in transportation cost to make such affordable to rural farmers

D.

Presence of bad roads

Correct answer is D

Presence of bad roads or total lack of good roads makes distribution of produces to the market very difficult, and this leads to wastage.

179.

Which of the following is an example of igneous rock?

A.

Gneiss

B.

Limestone

C.

Standstone

D.

Granite

Correct answer is D

Granite is a group of igneous and plutonic rocks composed primarily of feldspar and quartz.

180.

The mating of unrelated individual animals within the same breed is called

A.

Out breeding

B.

In-breeding

C.

Line breeding

D.

Cross breeding

Correct answer is A

Out breeding is the mating of unrelated individual animals within the same breed.
Out breeding is the opposite of in-breeding. It produces offspring with greater vigour and productivity.