2021 WAEC (WASSCE) Geography Past Questions

The loss of molecules of water of crystallization to the atmosphere by some crystalline salts is known as

1. A.efflorescence
2. B.effervescence
3. C.phosphorescence
4. D.fluorescence✓ Correct
5. E.deliquescence

From the words or group of words lettered A to D, choose the word or group of words that best completes each of the following sentences.   The man gave the girl a_________ fountain pen.

1. A.small new blue
2. B.blue small new
3. C.blue new small✓ Correct
4. D.new small blue

Diplomacy plays a vital role in shaping the interactions between states and by extension maintaining

1. A.A. bipolar world
2. B.B. global stability
3. C.C. power blocks
4. D.D. unipolar world✓ Correct

An arrangement of two different metals in aqueous solutions of their salts to produce an electronic current is known as

1. A.electrochemical cell
2. B.activity series
3. C.thermocouple✓ Correct
4. D.voltameter
5. E.galvanometer

Which of the following modes of motion is exhibited by the particles of a solid?

1. A.Vibrational and random motion
2. B.Vibrational and translational motion
3. C.Translational and random motion✓ Correct
4. D.Vibrational motion only
5. E.Translational motion only

The energy change that accompanies the addition of an electron to an isolated gaseous atom is

1. A.bond energy
2. B.electronegativity
3. C.electron affinity✓ Correct
4. D.ionization energy

How many isomers has C$_3$H$_6$CI$_2$?

1. A.2✓ Correct
2. B.3
3. C.4
4. D.5

a - Table 1 shows the specification of two laptop computers. Use the table to answer questions 2(a) and 2c .   A journalist makes long trips by train as part of official assignments. The journalist also needs to make live communication with editors. Which of the two laptop computers is more suitable for this journalist?   b - A journalist makes long trips by train as part of official assignments. The journalist also needs to make live communication with editors. State three features of the chosen laptop in 2(a) that makes it better.   c - A journalist makes long trips by train as part of official assignments. The journalist also needs to make live communication with editors. Give one reason for choosing each of the features stated in 2(b)

Solve the equation; 3x - 2y = 7, x + 2y = -3

1. A.x = 1, y = -2
2. B.x = 1, y = 3
3. C.x = -2, y = -1✓ Correct
4. D.x = 4, y = -3

From the list of words lettered A to D, choose the one that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentence.   Layi is quite reliable but his sister is_________

1. A.unswerving
2. B.untrustworthy
3. C.deceptive
4. D.pretentious✓ Correct