1. Bacteria belong to the kingdom
A. fungi
B. plantae
C. prokaryotae
D. protoctista
Answer: C
2. The manufacture of plastics involves
A. Crystallization
B. fermentation
C. polymerization
D. vulcanization
C
3. Which of the following crops are sources of edible oil?
I. cowpea
II. groundnut
III. Soya bean
A. I and II only
B. I and III only
C. II and III only
D. I,II and III
C
4. Sound waves cannot undergo
A. diffraction
B. dispersion
C. reflection
D. refraction
B
5. Twins are described as Siamese when
A. both are female
B. one is a male and the other female
C. they are joined at some point
D. one is born several hours before the other
C
6. Fractional distillation can be used to produce
A. ethanol from palm wine
B. kerosene from crude oil
C. charcoal from wood
D. salt from sea water
B
7. The removal of plant nutrients by water percolation downwards from the reach of plants is known as
A. drainage
B. erosion
C. infiltration
D. leaching
D
8. Atmospheric air is a mixture because it
A. supports combustion
B. can be liquefied
C. contains more than two elements
D. has no definite compositions
C
9. Ectopic pregnancy may result in the
A. rupture of the oviduct
B. release of an ovum
C. contraction of the uterus
D. malfunctioning of the placenta
A
10. Which of the following ions can cause permanent hardness in water?
A. Ca2+
B. K+
C. Na+
D. Zn2+
A
11. The principal organic compound formed by fermentation of sugar is
A. ethanoic acid
B. ethanol
C. formic acid
D. methanol
B
12. Soil aeration could be improved by
A. application of inorganic fertilizers
B. drainage of excess water
C. irrigation
D. mulching
B
13. The constriction in a clinical thermometer
A. enables the mercury to remain in the bulb at very high temperatures
B. prevents the mercury from flowing back into the bulb
C. enables the mercury to expand uniformly
D. prevents the mercury from over-expanding
B
14. Which of the following statements is correct for an object placed in front of a convex mirror? The image is
A. behind the mirror
B. enlarged
C. inverted
D. real
A
15. The causative organism of whooping cough is
A. bacterium
B. fungus
C. worm
D. virus
A
16. The motion of a globe spinning on its axis is
A. circular
B. oscillatory
C. rectilinear
D. rotational
D
17. What is the colour of phenolphthalein in orange juice?
A. blue
B. colourless
C. pink
D. red
B
18. Germinating seed releases heat energy and carbon dioxide which is an indication that
A. heat is required for germination
B. seeds can supply energy to the body when eaten
C. seeds are living things
D. carbon dioxide is not required for germination
C
19. Partial shadow is also referred to as
A. eclipse
B. mirage
C. penumbra
D. umbra
C
20. Colostrum is very important for the feeding of newly-born mammals because its contains
A. carbohydrates for providing energy
B. antibodies, proteins and vitamins for initial growth
C. iron-rich substances for producing blood
D. substances that kill worms in the young mammal
B
21. Over-indulgence in the use of mobile phones could lead to
A. air pollution
B. irradiation of body tissues
C. rupture of the ear drum
D. the user becoming a talkative
B
22. Which of the following modes of heat transfer does not require a medium?
A. Conduction
B. Convection
C. Evaporation
D. Radiation
D
23. Which of the following fruits is a false fruit?
A. cashew
B. mango
C. pawpaw
D. pineapple
D
24. A solid of mass 300 g increases in temperature by 15°C. Calculate the amount of heat absorbed. [Specific heat capacity of the solid is 2100 J k-1]
A. 9 450 J
B. 94 500 J
C. 945 000 J
D. 9 450 000 J
A
25. Yam is staked in order to
A. prevent pest attack
B. enable the vine to develop more leaves
C. expose the leases to sunlight
D. allow the tubers to grow deep into the soil
C
26. Which of the following characteristics in humans is an indication of sexual maturity?
A. The ability to think deeply
B. growth of hairs in the pubic region
C. the ability to exercise self control
D. presence of grey hairs on the body
B
27. If the blood group of an individual is AB, then none of the parents could belong to blood group
A. A
B. B
C. AB
D. O
D
28. Which of the following computer application programs can most effectively be used to produce financial records?
A. desktop publishing
B. graphics
C. spreadsheet
D. word processing
C
29. A farmer planted 2500 stands of maize at a rate of two seeds per stand. If there was 90% germination, determine the plant population.
A. 2250
B. 2777
C. 4500
D. 4750
C
30. Which of the following substances is used to disinfect fresh wounds?
A. ammonia solution
B. ethyl alcohol
C. hydrogen peroxide
D. iodine tincture
D
