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The correct answer is (D) draining stagnant water.
Bilharzia and malaria are both waterborne diseases, so if the stagnant waters are drained then there will be no breading area for the causative agents of the diseases.
sharon kalunda answered the question on July 29, 2019 at 07:12
- Which one of the following components of blood is attacked by HIV? (Solved)
Which one of the following components of blood is attacked by HIV?
A. Red blood cells.
B. White blood cells.
C. Platelets.
D. Plasma.
Date posted: July 29, 2019. Answers (1)
- 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. Answers (1)
- Which one of the following is the main reason why lactating mothers should be fed on a diet rich in iron? To(Solved)
Which one of the following is the main reason why lactating mothers should be fed on a diet rich in iron? To
A. Replace blood lost during birth.
B. Increase milk production.
C. Boost the child's immunity.
D. Prevent anemia in the body.
Date posted: July 29, 2019. Answers (1)
- In which one of the following is water recycled? (Solved)
In which one of the following is water recycled?
A. Water used for cleaning vegetables is used to water flowers.
B. Use of dams to collect water.
C. Use of drip irrigation in cultivation.
D. Use of treated industrial waste water.
Date posted: July 29, 2019. Answers (1)
- The following are signs and symptoms of certain diseases:
(i) Fever.
(ii) Severe headache.
(iii) Blood in stool and urine.
(iv).Severe dehydration.
(v) Vomiting.
Which...(Solved)
The following are signs and symptoms of certain diseases:
(i) Fever.
(ii) Severe headache.
(iii) Blood in stool and urine.
(iv).Severe dehydration.
(v) Vomiting.
Which two are for typhoid?
A. (i) and (ii).
B. (ii) and (iii).
C. (iii) and (iv).
D. (iv) and (v).
Date posted: July 29, 2019. Answers (1)
- Which one of the following myths and misconceptions about HIV/AIDS could highly increase the spread of the infection?(Solved)
Which one of the following myths and misconceptions about HIV/AIDS could highly increase the spread of the infection?.
A. Fat people have no infection.
B. AIDS is a curse.
C. One can get AIDS by shaking hand.
D. AIDS is caused by witchcraft.
Date posted: July 29, 2019. Answers (1)
- 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. Answers (1)
- A child with extreme loss of weight and a face that looks old will also have(Solved)
A child with extreme loss of weight and a face that looks old will also have
A. protruding stomach.
B. swollen feet.
C. sores on the corners of mouth.
D. alert eyes.
Date posted: July 29, 2019. Answers (1)
- A meal made of Irish potatoes, beans and rice can be made a balanced diet by? (Solved)
A meal made of Irish potatoes, beans and rice can be made a balanced diet by?
A. removing one energy giving food.
B. adding body building food.
C. adding water.
D. adding protective food.
Date posted: July 29, 2019. Answers (1)
- 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. Answers (1)
- The diagram below represents a certain weather instrument.
The instrument can be used to show(Solved)
The diagram below represents a certain weather instrument.
The instrument can be used to show
A. direction of wind only.
B. speed and direction of wind.
C. speed of wind only.
D. direction and strength of wind.
Date posted: July 29, 2019. Answers (1)
- The following are some examples that involve the use of some simple machines
(i) A car moving on road winding up a hill.
(ii) A...(Solved)
The following are some examples that involve the use of some simple machines
(i) A car moving on road winding up a hill.
(ii) A wheelbarrow in use.
(iii) A person climbing up a staircase.
(iv) Rolling an object down a hill.
Which two activities involve the use of inclined planes?
A. (ii), (iv)
B. (ii), (iii)
C. (i), (iii)
D. (i),(iv)
Date posted: July 29, 2019. Answers (1)
- 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. Answers (1)
- 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. Answers (1)
- Which one of the following will increase the rate at which soil is carried away by running water?(Solved)
Which one of the following will increase the rate at which soil is carried away by running water?
A. Planting sweet potatoes.
B. Terracing the farm.
C. Cultivating along the slope.
D. Strip cropping.
Date posted: July 29, 2019. Answers (1)
- Which one of the following consists only of living components of the environment?(Solved)
Which one of the following consists only of living components of the environment?
A. soil, water, fern.
B. water, wind, mushroom.
C. mushroom, fern, moss.
D. moss, wind, soil.
Date posted: July 29, 2019. Answers (1)
- 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. Answers (1)
- The following are observations made on fertilizers and manures:
(i) Nutrients are readily released.
(ii) Have nutrients in specific amounts.
(iii) Improves soil structure.
(iv)...(Solved)
The following are observations made on fertilizers and manures:
(i) Nutrients are readily released.
(ii) Have nutrients in specific amounts.
(iii) Improves soil structure.
(iv) Benefits are long term.
Which two observations are for manure?
A. (i) and (ii).
B. (ii) and (iii).
C. (iii) and (iv).
D. (i) and (iv).
Date posted: July 29, 2019. Answers (1)
- Use of cover crops for conservation of soil will work in the same way as (Solved)
Use of cover crops for conservation of soil will work in the same way as
A. planting of trees.
B. mulching.
C. terracing.
D. contour farming.
Date posted: July 29, 2019. Answers (1)
- Which one of the following blood vessels carries blood from the left ventricle?(Solved)
Which one of the following blood vessels carries blood from the left ventricle?
A. Vena cava.
B. Pulmonary artery.
C. Aorta.
D. Pulmonary vein.
Date posted: July 29, 2019. Answers (1)