WAEC (WASSCE) Biology Past Questions & CBT Practice

Choose the most appropriate option for the gap labelled [....75.....] above

1. A.trainers
2. B.instructors
3. C.experts✓ Correct
4. D.teachers

Which of the following statement(s) is/are correct about a fixed mass of gas compressed in an inexpansible container; I. The average speed of the molecules increases II. The temperature of the gas increases III. The molecules hit the walls of the container more often than before the compression

1. A.I only
2. B.I and II only
3. C.I, II, and III only✓ Correct
4. D.I and III

Speaker X sees Speaker Y

1. A.as a pretender
2. B.as a past lover✓ Correct
3. C.for the first time
4. D.for the last time

After the sentence, a list of possible interpretations of the sentence is given. Choose the interpretation that you consider most appropriate for the sentence. Okon is too quiet for my liking. This means that Okon

1. A.is liked because he is very quiet
2. B.likes people who are quiet✓ Correct
3. C.is not liked because of his extreme quietness
4. D.behaves in a very queer and suspicious manner

An atom X consist of 6 protons, 6 electrons and 7 neutrons. Which of the following representations of the atom is correct?

1. A.136X
2. B.137X
3. C.196X✓ Correct
4. D.197X

From the words lettered A to D, choose the word that best completes each of the following sentences: Many a player.............to score a goal so as to be highly honoured.

1. A.is wanting
2. B.wants
3. C.want✓ Correct
4. D.have wanted

make x the subject of the relation $y = \frac{ax^3 - b}{3z}$

1. A.x = $\sqrt[3] \frac{ax^3 - b}{3z}$
2. B.x = $\sqrt[3] \frac{3yz - b}{a}$
3. C.x = $\sqrt[3] \frac{3yz + b}{a}$
4. D.x = $\sqrt[3] \frac{3yzb}{a}$✓ Correct

A ball is dropped from the top of a tower. Due to air resistance,it reaches terminal velocity. Which of the following statement(s) about its motion is/are correct? i. The acceleration of the ball is zero. ii. The net force on the ball is zero. iii. The velocity of the ball increases.

1. A.i only
2. B.i and ii only
3. C.ii and iii only
4. D.i, ii and iii✓ Correct

The sun is vertically overhead at the tropic of Capricorn on

1. A.June 21st
2. B.September 23rd
3. C.March 21st
4. D.December 22nd✓ Correct

A piece of copper of mass 20g at a temperature of 110°C was dropped into a mixture of ice and water at 0°C. If the final steady temperature of the mixture is 0°C . Calculate the amount of ice that melted [Specific heat capacity of copper = 0.4 Jg$^{-1}$K$^{-1}$, specific latent heat of fusion of ice = 330Jg$^{-1}$]

1. A.0.37g
2. B.0.60g
3. C.2.40g✓ Correct
4. D.2.70g