WAEC Past Questions and Answers - Page 1854

9,266.

The mosaic appearance on cassava leaves is caused by

A.

Pests

B.

Bacteria

C.

Virus

D.

Nematode

Correct answer is C

No explanation has been provided for this answer.

9,267.

Smut diseases are often found on

A.

Maize

B.

Cassava

C.

Cowpea

D.

Grapes

Correct answer is A

No explanation has been provided for this answer.

9,268.

Which of the following is not a viral disease of crops?

A.

Cocoa swollen shoot

B.

Tobacco mosic

C.

Tomato leaf curl

D.

Banana blight

Correct answer is D

No explanation has been provided for this answer.

9,269.

Disease causing organisms are referred to as

A.

Vectors

B.

Pathogens

C.

Pests

D.

Insects

Correct answer is B

No explanation has been provided for this answer.

9,270.

Which of the following groups of organisms cause the greatest damage to stored grains?

A.

Insects

B.

Birds

C.

Viruses

D.

Fungi

Correct answer is A

No explanation has been provided for this answer.