2021 NECO Geography Past Questions

Which metal bromide is widely used in photography?

1. A.calcium bromide
2. B.magnesium bromide✓ Correct
3. C.potassium bromide
4. D.silver bromide
5. E.sodium bromide

Which of the following factors affect population?

1. A.competition and natality rate
2. B.heat and space
3. C.food and mortality rate✓ Correct
4. D.Space and competition
5. E.Water and light

A narrow, uniform glass tube, closed at one end, constains air which is sealed by a thread of mercury. The tube is placed first horizontally and then vertically with the open end at the top. Which of the following statements is correct?

1. A.The length of the entrapped air in the horizontal position is less than that in the vertical position✓ Correct
2. B.The length of the entrapped air in the vertical position is less than that in the horizontal position
3. C.The length of the mercury column becomes shorter in the horizontal position than in the vertical position
4. D.The length of the mercury column becomes shorter in the vertical position than in the horizontal position
5. E.The pressure of the entrapped air is atmospheric in both cases.

Which of the following motions will be produced by a pair of equal, opposite and non-collinear parallel forces acting on a body?

1. A.Oscillatory✓ Correct
2. B.Random
3. C.Rotational
4. D.Translational
5. E.Vibratory

A surveyor measured the length of a obtained 42.55 metres. If his measurement was more than the actual length and the percentage error of his measurement was 8%, calculate the actual length of the land

1. A.39.40 metres
2. B.46.20 metres
3. C.46.25 metres
4. D.46.50 metres✓ Correct
5. E.48.25 metres

From the top of a storey-buliding, the angle of depression of a mango on a tree 20m away from the base of the storey building is 68°. if the mango is 4.5 m above the ground, what is the height of the storey building to the nearest metre?

1. A.55m
2. B.54m
3. C.50m
4. D.49m
5. E.45m✓ Correct

Root pressure and the transpiration pull are biophysical processes which account for the?

1. A.ascent of water into leaves
2. B.exchange of gases at leaf surfaces
3. C.movement of manufactured food from leaves to storage tissues
4. D.opening and closing of stomata
5. E.Release of energy from glucose molecules✓ Correct

A pair of genes which controls a trait is described as

1. A.allele✓ Correct
2. B.dominant
3. C.hybrid
4. D.recessive
5. E.variant

The energy stored in a capacitor of capacitance 5 μF is 40J. What is the voltage applied across its terminals?

1. A.4V✓ Correct
2. B.8V
3. C.16V
4. D.200V
5. E.4000V

A general lack of concern about political activities is known as political

1. A.A. alienation
2. B.B. apathy✓ Correct
3. C.C. socialization
4. D.D. anarchy