WAEC Past Questions and Answers - Page 3395

16,971.

Use the list of insects below to answer the question below.

I. Cotton stainer    II. Honeybee     III. Termite       IV. Weevil

Which of the insects destroys grains?

A.

I

B.

II

C.

III

D.

IV

Correct answer is D

No explanation has been provided for this answer.

16,972.

Use the list of insects below to answer the question below.

I. Cotton stainer    II. Honeybee     III. Termite       IV. Weevil

The insects whose activities are both beneficial and harmful to humans are

A.

I and II

B.

II and III

C.

II and IV

D.

III and IV

Correct answer is B

No explanation has been provided for this answer.

16,973.

The depletion of the ozone layer will result in the earth surface receiving more

A.

gamma rays

B.

infrared rays

C.

ultraviolet rays

D.

X-rays

Correct answer is C

No explanation has been provided for this answer.

16,974.

The position occupied by an organism in the food chain is the

A.

energy level

B.

niche

C.

trophic level

D.

biomass

Correct answer is C

No explanation has been provided for this answer.

16,975.

Soil with the finest texture is

A.

silt

B.

clay

C.

sand

D.

gravel

Correct answer is B

The soil with the finest texture is clay soil, while the soil with the coarsest texture is sand.