WAEC Past Questions and Answers - Page 4092

20,456.

Which of the following processes will not introduce carbondioxide into the atmosphere?

A.

Breathing

B.

Photosynthesis

C.

Respiration

D.

Putrefaction

E.

Burning

Correct answer is B

No explanation has been provided for this answer.

20,457.

Which of the following statements is not correct about long sight?

A.

A Iong-sighted person can see distant objects clearly

B.

Light from a nearby object is focused behind the retina.

C.

The eyeball is too short

D.

The defect is corrected by using a diverging lens

Correct answer is D

No explanation has been provided for this answer.

20,459.

The refractive index of glass for yellow light is greater than that for red light because yellow light

A.

has a greater amplitude than red light

B.

is more intense than red light

C.

travels more slowly than red light

D.

deviates less than red light

Correct answer is A

No explanation has been provided for this answer.

20,460.

The large intercellular air spaces that penetrate the tissues of most hyrophytes provide a pathway through
which

A.

carbondioxide absorbed by leaves can diffuse to the roots

B.

oxygen produced in the leaves can diffuse to the submerged parts

C.

salts absorbed by roots can reach other parts of the plant

D.

plant hormones are transported to various parts

E.

manufactured food is translocated

Correct answer is B

No explanation has been provided for this answer.