The correct answer is D. Malaria.
Malaria is spread by mosquitoes, which breed well in a moist/water masses.
sharon kalunda answered the question on July 29, 2019 at 09:42
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Below is an illustration of a food chain.
Plant —> Antelope —> Lion —> Vulture
Tertiary consumers are represented by
(Solved)
Below is an illustration of a food chain.
Plant —> Antelope —> Lion —> Vulture
Tertiary consumers are represented by
A. plants.
B. antelope.
C. lion.
D. vulture.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following teeth problems can be prevented by feeding on a balanced diet?
(Solved)
Which one of the following teeth problems can be prevented by feeding on a balanced diet?
A. Bleeding gums.
B. Dental cavities.
C. Bad smell.
D. Tooth decay.
Date posted:
July 29, 2019
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Answers (1)
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Which type of manure is common on dairy farms?
(Solved)
Which type of manure is common on dairy farms?
A. Green manure.
B. Compost manure.
C. Farmyard manure.
D. Organic mulches.
Date posted:
July 29, 2019
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Answers (1)
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The diagram below represents a single fixed pulley in use.
Which one of the following is NOT true about the pulley?
(Solved)
The diagram below represents a single fixed pulley in use.

Which one of the following is NOT true about the pulley?
A. It reduces the effort applied.
B. Effort and load move through equal distances.
C. Makes work easier by changing direction of effort.
D. The wheel reduces friction.
Date posted:
July 29, 2019
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Answers (1)
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Pupils placed a bottle top on water and it floated. They then crushed and placed the same bottle top on the water again and it...
(Solved)
Pupils placed a bottle top on water and it floated. They then crushed and placed the same bottle top on the water again and it sunk. Which one of the following factors that affect sinking and floating was being investigated?
A. Size of the material.
B. Type of the material.
C. Shape of the material.
D. Mass of the material.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following components of the environment will be least affected when an oil pipe bursts?
(Solved)
Which one of the following components of the environment will be least affected when an oil pipe bursts? A. Air.
B. Water.
C. Soil.
D. Plants.
Date posted:
July 29, 2019
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Answers (1)
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The diagram below represents a set—up used to demonstrate certain aspects of matter.
The pin next to the candle fell off as a result of
(Solved)
The diagram below represents a set—up used to demonstrate certain aspects of matter.

The pin next to the candle fell off as a result of
A. conduction and radiation.
B. radiation only.
C. convection and conduction.
D. conduction only.
Date posted:
July 29, 2019
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Answers (1)
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In an investigation, pupils placed a mirror in a basin containing water to direct light to a white wall. The pupils were investigating
(Solved)
In an investigation, pupils placed a mirror in a basin containing water to direct light to a white wall. The pupils were investigating
A. how light travels.
B. reflection.
C. refraction.
D. making of a rainbow.
Date posted:
July 29, 2019
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Answers (1)
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Pupils put garden soil in a glass bottle containing Water, shook it and allowed it to settle. Which one of the following could NOT be...
(Solved)
Pupils put garden soil in a glass bottle containing Water, shook it and allowed it to settle. Which one of the following could NOT be determined by the experiment?
A. Presence of air.
B. Presence of organic matter.
C. Presence of inorganic matter.
D. Sizes of different soil particles.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following pairs of plants stores food in the root?
(Solved)
Which one of the following pairs of plants stores food in the root?
A. Carrots and Irish potatoes.
B. Irish potatoes and sweet potatoes.
C. Sweet potatoes and cassava.
D. Cassava and onions.
Date posted:
July 29, 2019
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Answers (1)
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The heat from a burning charcoal stove reaches the other parts of a room mainly by
(Solved)
The heat from a burning charcoal stove reaches the other parts of a room mainly by
A. radiation and conduction;
B. radiation only;
C. radiation and convection;
D. convection only.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following animals moves by flying and hopping?.
(Solved)
Which one of the following animals moves by flying and hopping?.
A. Cockroach.
B. Flea.
C. Mite
D. Cricket.
Date posted:
July 29, 2019
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Answers (1)
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The rate at which water drains in the soil is mainly determined by
(Solved)
The rate at which water drains in the soil is mainly determined by
A. Volume of the soil
B. Size of the soil particles.
C. Humus content of the soil.
D. Air content of the soil.
Date posted:
July 29, 2019
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Answers (1)
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In investigating capillarity in soil, pupils were provided with water and different soils. Which two other materials are required?
(Solved)
In investigating capillarity in soil, pupils were provided with water and different soils. Which two other materials are required?
A. Funnels and drinking straws.
B. Plastic bottles and funnels.
C. Cotton wool and drinking straws.
D. Plastic bottles and drinking straws.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following is the best method of handling medicine bottles after use?
(Solved)
Which one of the following is the best method of handling medicine bottles after use?
A. Recycling.
B. Reusing.
C. Burying in a deep pit.
D. Burning them immediately.
Date posted:
July 29, 2019
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Answers (1)
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A disease characterized by discharge of grey-yellow pus and burning sensation during urination is
(Solved)
A disease characterized by discharge of grey-yellow pus and burning sensation during urination is
A. gonorrhea.
B. syphilis.
C. chancroid.
D. cholera.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following need NOT to be considered when modelling the solar system using clay balls?
(Solved)
Which one of the following need NOT to be considered when modelling the solar system using clay balls?
A. Size of balls.
B. Distance between balls.
C. Mass of balls.
D. Number of balls.
Date posted:
July 29, 2019
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Answers (1)
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The machine used to raise a flag makes work easier by
(Solved)
The machine used to raise a flag makes work easier by
A. changing the direction of the effort.
B. making the load lighter.
C. reducing the distance that effort moves.
D. Reducing the effort
Date posted:
July 29, 2019
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Answers (1)
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The diagram below shows a simple machine with positions labelled E, F, G and H.
For the machine to make work easier the effort should be...
(Solved)
The diagram below shows a simple machine with positions labelled E, F, G and H.

For the machine to make work easier the effort should be applied at point
A. E.
B. F.
C. G.
D. H.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following activities would cause a reduction in the number of animals in a river?
(Solved)
Which one of the following activities would cause a reduction in the number of animals in a river?
A. Washing vehicles in the river.
B. Dumping human waste into the river.
C. Wild animals watering in the river.
D. Cutting trees from the river bank.
Date posted:
July 29, 2019
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Answers (1)