WAEC Agricultural Science Past Questions & Answers - Page 188

936.

An illegal method of harvesting fish is by the sue of

A.

Drag net

B.

Potassium cyanide

C.

Hook and line

D.

Calcium carbonate

Correct answer is B

No explanation has been provided for this answer.

937.

Temperature is an important factor in fish ponds because it

A.

Affects the metabolic processes in fish

B.

Determines the sex of fishes

C.

Encourages the growth of phytoplanktons

D.

Affects the type of specie of fish

Correct answer is A

No explanation has been provided for this answer.

938.

A farmer noticed that one of his cows has high fever, blood-stained diarrhoea and often grinds its teeth. This shows that the cow is infected by

A.

Rinderpest

B.

Anthrax

C.

Brucellosis

D.

Aspergillosis

Correct answer is A

No explanation has been provided for this answer.

939.

Liver fluke infestation causes disturbance in lipid digestion because it

A.

Blocks the passage of fat to intestine

B.

Blocks the bile duct and reduces secretion of bile

C.

Destroys the lipase enzyme

D.

Prevents fat excretion

Correct answer is B

No explanation has been provided for this answer.

940.

Which of the following practices is not a method of improving rangeland?

A.

Rotational grazing

B.

Reseeding of depleted forage species

C.

Removal of weeds

D.

Use of inorganic fertilizers

Correct answer is C

No explanation has been provided for this answer.