2020 Basic Education Certificate Examination Questions and Answers
Objective Test. 2020 Basic Education Certificate Examination Questions and Answers. 2020 Basic Education Certificate Examination
1. Which of the following parts of the tooth is embedded in the jaw bone?
A. Gum.
B. Neck.
C. Root.
D. Crown.
Answer: Root
2. Which part of the human body stores sperms temporarily?
A. Epididymis
B. Scrotum
C. Prostrate gland
D. Sperm duct
Answer: Epididymis
3. An advantage of soft water over hard water is that, soft water
A. Is good for the formation of strong bones
B. Prevents heart diseases
C. Has a pleasant smell
D. Saves alot of soap when used in washing
Answer: Saves alot of soap when used in washing.
4. The work done by force of 20N on a body is 60 J. Calculate the distance through which the force moved?
A. 8.0 m.
B. 3.0 m.
C. 4.0 m.
D. 2.0 m.
Answer: 3.0 m
5. Which of the following processes removes carbon from the atmosphere?
A.. respiration
B. Burning
C. Decomposition
D. Photosynthesis
2020 Basic Education Certificate Examination
Answer: photosynthesis
6. A substance which is made up of the same kind of atoms is called
A. A compound
B. An element
C. A mixture
D. An ion
Answer: Element
7. Which of the following statements is/ are true of a shadow? It is formed
I. by a transparent object
II. By an opaque object
III. On a screen
A. I only
B. II only
C. I and III only
D. II and III only
Answer: II only
8. Which of the following diseases results from malnutrition
A. Scurvy
B. Measles
C. Malaria
D. Gonorrhea
Answer: Scurvy
9. The chemical formula for aluminum sulphide is Alyx3 . Determine the value of y?
A. 1
B. 2
C. 3
D. 4
Answer: 2
10. Which of the following source of energy is or are renewable?
I. Wind
II. Coal.
III. Crude oil
A. I only
B. I and II only
C. II and III only
D. I, II and III only
Answer: I only
11. Clayey soils are described as heavy because they
A. Have high water holding capacity
B. Contains alot of stones
C. Have large air space
D. Are difficult to till
Answer: Have high water holding capacity
2020 Basic Education Certificate Examination
12. An example of legume is
A. Groundnut
B. Millet
C. Sorghum
D. Sweet potato
Answer: Sorghum
13. The process used to separate a mixture of Iron fillings and sulphur is.
A. Magnetic attraction
B. Sublimation
C. Distillation
Answer: Magnetic attraction
14. The color of soil profile determines.
A. Depth at which implements are set
B. Drainage ability of the soil
C. Fertility of the soil
D. Type of tools to use
Answer: Fertility of the soil
15. The end product of fat and oil digestion is.
A. Amino acid
B. Glucose
C. Maltose
D. Fatty acids and glycerol
Answer: Fatty acids and glycerol
16. The unit of potential difference is
A. Ampers.
B. Watt.
C. Ohm.
D. Volt.
Answer: Volt
17. A stone displaced 20 cm3 of water when immersed in the water. If the mass of the stone is 40 g. Find the Density of the stone.
A. 60 g cm-3.
B. 40 g cm-3.
C. 2 g cm-3.
D. 0.5 g cm-3
Answer: 2 gcm-3
18. One similarity of physical and chemical changes is that, both
A. Are easily reversible
B. Results in change of state of matter
C. Produce no change in mass.
D. Are accompanied by great heat change
Answer: Results in change of state of matter
19. Which of the following elements is a macro- nutrient?
A. Copper
B. Manganese
C. Zinc.
D. Sulphur
Answer: Sulphur
20. The process by which metabolic wastes are removed from the body is called
A. Respiration
B. Excretion
C. Egestion
D. Ingestion
Answer: Excretion
2020 Basic Education Certificate Examination
21. The part of the flower that produces pollen grains is the
A. Stamen
B. Filament
C. Petals
D. Anther
Anther: Anther
22. Which of the following statements about pressure in fluids is or are correct?
I. Decrease with depth
II. Increase with depth
III. Does not depend on area.
A. I only
B. II only
C. I and III only
D. II and III only
Answer: II only
23. A boy who is seventeen years old is an
A. Adult
B. Adolescent
C. Old person
D. Infant
Answer: adolescent
24. The mode of heat transfer which requires no material medium is called
A. Conduction
B. Convection
C. Expansion
D. Radiation
Answer: Radiation
25. Which of the following factors are used to describe a fertile soil?
I. Amount of organic matter
II. Colour
III. Texture
A. I and II only
B. I and III only
C. II and III only
D. I, II and III only
Answer: I, II and III only
26. The major charge carriers in p-type semiconductors are.
A. Anions
B. Electrons
C. Holes .
D. Neutrons
Answer: Holes
27. The dry season in Ghana is mainly from
A. January to march
B. April to June
C. July to September
D. October to December
Answer: January to march
28. Removing excess parts of plants is called
A. Mulching
B. Pruning
C. Thinning o up t.
D. Staking
Answer: Pruning
29. Which of the following soil type has the highest capillary action
A. Clay
B. Loam.
C. Sand.
D. Silt
Answer: Clay
2020 Basic Education Certificate Examination
30. Which of the following farming practices promote soil erosion?
A. Ploughing along the slope
B. M in mulching
C. Crop rotation
D. Contour ploughing.
Answer: Ploughing along the slope
31. The nearest planet to the sun in the solar system is
A. Earth
B. Mars.
C. Mercury
D. Venus
Answer: Mercury
32. In which of the following devices is electrical energy transformed into light energy?
A. Electric bell.
B. Fluorescent tube
C. Lantern
D. Radio.
Answer: Fluorescent tube
33. An example of semi metal is the.
A. Silicon
B. Carbon.
C. Beryllium
D. Argon
Answer: Silicon
34. The elements in the periodic table are arranged according to their
A. Atomic number
B. Atomic mass
C. Mass number
D. Neutron number
Answer: Atomic number
35. Which of the following states of matter are Too true
I. Solid
II. Liquid
III. Gas.
A. I and II only
B. I and III only
C. II and III only
D. I, II, and III only
Answer: I, II and III only
36. A liquid- liquid mixture can be separated by.
A. Filtration
B. Evaporation
C. Sublimation
D. Distillation
Answer: Distillation
37. When an unknown solution reacted with magnesium, a gas was produced. Which of the following could be the unknown solution
A. NaOH
B. NaCl.
C. HCl.
D. CaN
Answer: Hydrochloric acid
38. Which of the following turns red litmus paper to blue?
A. Salt.
B. Base.
C. Acid
D. Hydrochloric acid
Answer: Base
39. The structure which enables a fish to breathe in water is
A. Buccal cavity.
B. Gills.
C. Swim bladder
D. Lungs
Answer: the gill
40. A fruit in which the pappus has been modified into a parachute structure is dispersed by
A. Explosion
B. Mammals
C. Water
D. Wind.
Answer: Wind
2020 Basic Education Certificate Examination
Essay type questions
Question1
The diagrams below are illustrations of two cells labeled A and B.
Study the diagrams carefully and answer the questions that follow
I. Name each of the following parts labeled I, II, III and IV
II. Which parts named in a)I) is the same as the parts labeled VI and IX in cell B.
III. Which of the cells is a plant cell?
IV. Give two reasons for the answer given in a) III)
V. Tabulate two differences between the parts labeled I and V.
Solution. Basic Education Certificate Examination
ai) names of parts labeled
I- cell membrane
II- cytoplasm
III- nucleus
IV- vacuole
Ii)
– I is same as VI ( cell membrane)
– IV is same as IX (vacuole)
III) identification of plant cell
– Diagram B.
IV) Reasons for the answer
– it has cell wall
– it has large permanent vacuole
– it is rectangular in shape
– nucleus pushed to the side
V) difference between cell wall and cell membrane
b. The diagrams below is an illustration of an experiment carried out in the laboratory. A the diagrams carefully and answer the questions that follow
I) Read and record the:
a. Mass of the irregular object (M) in I
b. Volume of water (V1) in II.
y. Volume of water (V2) III
Ii) Determine the volume of the irregular object
III. Name the instrument that could be used to measure the mass of an irregular object.
V) state one precaution to be taken when taking the experiment.
Solution. Basic Education Certificate Examination
b. I) a) mass of irregular object (M)= 40g
b) volume of water (V1)= 40 cm3.
y) Volume of water (V2) 60cm3
II) Volume of the object
V2- V1=60- 40 = 20cm3
III) density of the object
D= m/v = 40/20
= 2 g/cm3.
IV) instrument used to measure the object
– beam balance
-electronic balance
V) precautions
– lower object gentle into the water in the cylinder
– place measuring cylinder on a flat surface
C) The following activities were performed by group of students in the laboratory. Study the activities and answer the questions that follow
I. Camphor was heated
Ii. Wood was burnt
III. Iron nails were heated strongly
IV. Sodium chloride was disolved in water
I. Which of the activities are:
a. Chemical processes
b. Physical processes
Ii. Give two reasons why the activities listed in :
a. Are chemical processes
b. Are physical processes
III. Give two examples of physical change
Solution. Basic Education Certificate Examination
C) a. Chemical processes
-Wood was burnt
– Iron nails were heated strongly.
b. Physical processes
-Camphor was heated.
– Sodium chloride was disolved in water.
ii. Reasons:
a) – change in mass.
– new substance formed
-accompanied by great heat change
b).- no new substance is formed
– no change in mass
– not accompanied by great heat change
III. Examples of physical change
– melting of ice.
– pounding of fufu.
– boiling water
d) A farmer planted soya bean, yam and maize on a farm in a rotational programme as illustrated below. Study the diagram carefully and answer the questions that follow.
I. Copy and complete the table
Ii. List three principles of crop rotation
III. Give two reasons for selecting the crop named for V in plot 1 year three
IV. State ok one advantage of practicing this farming system
Solution. Basic Education Certificate Examination Questions and answers.
d) I
Ii. Principles of crop rotation
– leguminous crop should be added to the programme.
– fallow period should be allowed
– shallow rooted crop should be followed by deep rooted crop
– crops that are in the same family should not follow each other.
III. Reasons for selecting soya bean in plot 1 year three
– yoya bean fix nitrogen into the soil
– soya bean improves soil texture and structure
– yam is a deep rooted crop and should be followed by shallow rooted crop (soya bean)
– yam and soya bean belong to different family hence can follow each other.
IV. Advantages of crop rotation
– controls weeds.
– effective use of land
– controls soil erosion
– controls pests and diseases
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