WAEC Past Questions and Answers - Page 3547

17,731.

The additional satisfaction derived from the consumption of one or more unit of a good is called

A.

Marginal products

B.

Marginal utility

C.

Marginal revenue

D.

Marginal cost

Correct answer is B

No explanation has been provided for this answer.

17,733.

A nitrogen nucleus bombarded with an alpha particle produces an oxygen nucleus and a proton. The nuclear reaction for this process is \(^4_2H + ^{14}_2N \to ^{17}_{8}O + ^1_1H + Q\). Which of the following statements about the reaction is not correct?

A.

the bombardment results into a nucleus with greater proton number

B.

it is an induced nuclear reaction

C.

it is a natural radioactive decay

D.

the sum of the final nucleon numbers

Correct answer is B

This is an example of artificial decay.

Induced radioactivity, also called artificial radioactivity or man-made radioactivity, is the process of using radiation to make a previously stable material radioactive.

17,734.

Which of the following is an advantage of localization of industry?

A.

Development of subsidiary firms

B.

Creation of parallel markets

C.

Developments of slums

D.

Attraction of foreign capitals

Correct answer is A

No explanation has been provided for this answer.