The correct answer is (D). Bicycle dynamo and wind driven turbine.
Electrical source is not an electrical device.
sharon kalunda answered the question on July 29, 2019 at 08:06
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Which one of the following nutritional deficiency diseases makes the face and limbs of a child to swell?
(Solved)
Which one of the following nutritional deficiency diseases makes the face and limbs of a child to swell? A. Anaemia.
B. Marasmus.
C. Rickets.
D. Kwashiorkor.
Date posted:
July 29, 2019
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Answers (1)
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The diagram below represents the proportion of gases in air.
Which proportion represents the gas used in seed germination?
(Solved)
The diagram below represents the proportion of gases in air.
Which proportion represents the gas used in seed germination?
A.J
B.K
C.L
D.M
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 diagram below demonstrates an experiment done by pupils to show a certain type of soil erosion.
The type of soil erosion demonstrated by the...
(Solved)
The diagram below demonstrates an experiment done by pupils to show a certain type of soil erosion.
The type of soil erosion demonstrated by the pupils was
A. Splash erosion
B. Gulley erosion
C. Rill erosion
D. Sheet erosion.
Date posted:
July 29, 2019
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Answers (1)
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Which of the following is NOT advisable for a patient suffering from tuberculosis?
(Solved)
Which of the following is NOT advisable for a patient suffering from tuberculosis?
A. Ventilated housing.
B. Vaccination against the disease.
C. Isolation from healthy people.
D. Early treatment with antibiotics.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following parts of the human digestive system is correctly matched to its function?
(Solved)
Which one of the following parts of the human digestive system is correctly matched to its function?
ORGAN FUNCTION
A. Mouth Digests proteins.
B. Stomach Secretes digestive juice.
C. Small intestines Absorbs water.
D. Large intestines Stores digested food.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following is NOT a reason for HIV testing?
(Solved)
Which one of the following is NOT a reason for HIV testing?
A. To know the number of people infected.
B. For future planning.
C. To be keen to protect yourself and others.
D. In order to avoid infected individuals.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following attaches itself on the uterus wall to develop into a baby?
(Solved)
Which one of the following attaches itself on the uterus wall to develop into a baby?
A. Ovum.
B. Foetus.
C. Embryo.
D. Zygote.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following practices conserves water by using sparingly?
(Solved)
Which one of the following practices conserves water by using sparingly?
A. Washing cars along the lake shore.
B. Pouring water in the garden after washing fruits.
C. Watering animals in rivers.
D. Carrying out drip irrigation.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following statements is TRUE about HIV and AIDS?
(Solved)
Which one of the following statements is TRUE about HIV and AIDS?
A. An individual in asymptomatic stage of HIV infection tests negative.
B. A person develops AIDS during the window period of HIV infection.
C. An individual infected with HIV does not necessarily have AIDS.
D. HIV can be spread by mosquito bites.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following statements is correct about water?
(Solved)
Which one of the following statements is correct about water?
A. Filtration makes water safe for drinking.
B. Boiled hard Water is safe for drinking.
C. Soft water should not be boiled before drinking.
D. Boiling makes hard water difficult to lather.
Date posted:
July 29, 2019
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Answers (1)
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Which one of the following characteristics is found in both tilapia and ducks?
(Solved)
Which one of the following characteristics is found in both tilapia and ducks?
A. Have scales.
B. Filter feeding.
C. External fertilization.
D. Breathing under water.
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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In which one of the following activities is the tool used properly?
(Solved)
In which one of the following activities is the tool used properly?
A. Splitting firewood using a jembe.
B. Cutting wires using a knife.
C. Using a saw to cut wood.
D. Breaking stones using a claw hammer.
Date posted:
July 29, 2019
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Answers (1)
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The ability to do work is
(Solved)
The ability to do work is
A. Energy
B. Force.
C. Effort
D. Motion.
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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Which one of the following consists only of harmful animals?
(Solved)
Which one of the following consists only of harmful animals?
A. Dog and bee.
B. White ants and mole.
C. Snake and Chameleon.
D. Dog and mole
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 preventive measure against sexually transmitted infections for adolescent children?
(Solved)
Which one of the following is the best preventive measure against sexually transmitted infections for adolescent children?
A. Abstain.
B. Seeking medical treatment.
C. Use of condoms.
D. Faithfulness.
Date posted:
July 29, 2019
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Answers (1)