JAMB Agricultural Science Past Questions & Answers - Page 19

91.

What are abiotic factors in an agricultural ecosystem?

A.

Factors related to the living organisms

B.

Factors related to the availability of nutrients

C.

Factors related to the climate and weather

D.

Factors related to the physical environment

Correct answer is D

Abiotic factors in an agricultural ecosystem are the non-living components of the environment that influence the ecosystem and agricultural productivity.

92.

What is crop science?

A.

The study of agricultural machinery and equipment

B.

The study of weather patterns and their impact on crop growth

C.

The study of soil fertility and nutrient management

D.

The study of plant genetics and breeding

Correct answer is D

Crop science is the branch of agriculture that focuses on the scientific study of crops, particularly their genetics, breeding, and improvement. It involves the application of scientific principles and techniques to enhance the productivity, quality, and resilience of crop plants.

93.

What is the process of removing the horns of cattle called?

A.

Mating

B.

Dipping

C.

Dehorning

D.

Castration

Correct answer is C

Dehorning is the process of removing the horns of livestock. Cattle, sheep, and goats are sometimes dehorned for economic and safety reasons.

94.

The following processes in crops are sensitive to daylength except

A.

Fruiting

B.

Growth

C.

Flowering

D.

Branching

Correct answer is D

Fruiting, growth and flowering are sensitive to daylength but not branching.

95.

Which of the following groups of animals is usually kept in game reserves?

A.

Cattle, sheep and goats

B.

Camels, donkeys and horses

C.

Chicken, duck and turkeys

D.

Lions, elephants and donkeys

Correct answer is D

Animals kept in game reserves are mostly wild animals, and those used for sporting activities.