WAEC Agricultural Science Past Questions & Answers - Page 89

441.

Piercing and sucking insect pests possess 

A.

Maxillae

B.

Mandibles

C.

Labrums

D.

Proboscis

Correct answer is D

No explanation has been provided for this answer.

442.

Viral disease of crops can best be controlled through

A.

Vector control

B.

Planting resistant varieties

C.

Spraying insecticides

D.

Sterilizing farm equipment

Correct answer is B

No explanation has been provided for this answer.

443.

A fungus known as phytophthora palmivora is responsible for

A.

Panama disease of banana

B.

Blackarm disease of kola

C.

Blackpd disease of cocoa

D.

Bloosom-end rot of tomato

Correct answer is C

No explanation has been provided for this answer.

444.

Crop selection is adantageous because

A.

Seeds are collected from stands with desirable traits

B.

Expertise is required in carring out the process

C.

The breeder's patience is being tasked

D.

The process is time consuming

Correct answer is A

No explanation has been provided for this answer.

445.

Crop which are primarily grown to provide food for farm animals are

A.

Legumes

B.

Weeds

C.

Forages

D.

Grasses

Correct answer is C

No explanation has been provided for this answer.