WAEC Past Questions and Answers - Page 1972

9,857.

Why should a seed-producing farmer spray an insecticide on his crops only when the bees are not around?

A.

The bees would sting him and he therefore avoids them

B.

The farmer does not want to waste his chemicals

C.

Bees are important for pollination of his crops

D.

Bees produce honey for him in his farm

E.

Bees are harmless insects

Correct answer is C

No explanation has been provided for this answer.

9,858.

The process of meiosis in plants ensures the production of reproduction of reproductive cells with

A.

The same number of chromosomes like the parent plant

B.

Half the number of chromosomes of the parent plant

C.

No chromosomes like the parent plant

D.

Thrice the number of chromosomes of the parent plant

E.

Twice the number of chromosomes of the parent plant

Correct answer is B

No explanation has been provided for this answer.

9,859.

The disease which most attacks groundnut is called

A.

Rosette

B.

Mosaic

C.

Soft rot

D.

Powdery mildew

E.

Brown rot

Correct answer is A

No explanation has been provided for this answer.

9,860.

A forest established for watershed management will perform the following functions except

A.

Reducing water pollution

B.

Controlling fish population

C.

Controlling erosion

D.

Maintaining a steady stream flow

E.

Reducing evaporation

Correct answer is B

No explanation has been provided for this answer.