WAEC Past Questions and Answers - Page 3464

17,316.

The term rectilinear acceleration means the rate of increase of

A.

velocity along a circular path in a unit time

B.

distance along a rectangular path in a unit time

C.

displacement along a straight-line path in a unit time

D.

velocity along a straight-line path in a unit time

Correct answer is D

No explanation has been provided for this answer.

17,317.

Which of the following ecological factors will result in food shortage?

A.

Drought

B.

Low rate of reproduction

C.

Emigration

D.

Topography

Correct answer is A

No explanation has been provided for this answer.

17,318.

An object of mass 2 kg moves with a uniform speed of 10ms-1 for 5s along an straight path. Determine the magnitude of its acceleration

A.

0 ms-2

B.

1 ms-2

C.

3 ms-2

D.

4 ms-2

Correct answer is A

a = \(\frac{v - u}{t} = \frac{10 - 10}{5} = 0\)m/s

17,319.

The natural dwelling place of an organism is called its

A.

ecological niche

B.

habitat

C.

population

D.

environment

Correct answer is B

No explanation has been provided for this answer.

17,320.

A population that exceeds its carrying capacity and then collapses is represented graphically by a

A.

bell-shaped curve

B.

linear curve

C.

sigmoid curve

D.

skewed curve

Correct answer is A

No explanation has been provided for this answer.