The correct answer is C. Decanting and filtering.
Decanting makes the larger particles to settle down, filtering removes the smaller particles.
sharon kalunda answered the question on July 30, 2019 at 09:30
-
Soil becomes waterlogged due to
(Solved)
Soil becomes waterlogged due to
A. Its color.
B. The size of its particles.
C. The absence of small animals in it.
D. The amount of air in it.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following practices will conserve soil?
(Solved)
Which of the following practices will conserve soil?
A. Using dry grass for mulching.
B. Burying vegetation on farms.
C. Ploughing along the slope.
D. Burying plastic materials.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following consists of materials with a definite volume and definite shape?
(Solved)
Which of the following consists of materials with a definite volume and definite shape?
A. Water, bottle. Stone.
B. Paper, pin, ink.
C. Kerosene. Cooking oil. Milk.
D. Sand. Flour, sugar.
Date posted:
July 30, 2019
.
Answers (1)
-
In an investigation. Equal amounts of soap was added to equal amounts of water samples W and Z obtained from different sources. The following observations...
(Solved)
In an investigation. Equal amounts of soap was added to equal amounts of water samples W and Z obtained from different sources. The following observations were made:
(i) W formed lather.
(ii) Z formed suspended particles.
Which of the following statements about W and Z is NOT CORRECT?
A. W may have fewer minerals.
B. Z may form lather after boiling.
C. W can form scales in kettles.
D. Z wastes soap when washing.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following practices LEAST pollutes the soil?
(Solved)
Which of the following practices LEAST pollutes the soil?
A. Spraying crops to kill pests.
B. Burning plant wastes in the farm.
C. Disposing of animal wastes in the farm.
D. Burying plastics in the soil.
Date posted:
July 30, 2019
.
Answers (1)
-
For two masses X and Y. the mass of X was twice that of Y. The diagram below shows a set-up that was used to...
(Solved)
For two masses X and Y. the mass of X was twice that of Y. The diagram below shows a set-up that was used to investigate how the two masses balance at positions Q. R. S and T on a seesaw.
Which of the following was a correct observation about the investigation?
Position of X --------------------Position of ---------------------------------Y Observation made
A. Q----------------------------------- T----------------------------------------- End P moved down
B. R -----------------------------------T----------------------------------------- End V moved up.
C. Q----------------------------------- S---------------------------------------- Seesaw balanced.
D. R----------------------------------- S------------------------------------------ End V moved down
Date posted:
July 30, 2019
.
Answers (1)
-
In which of the following are characteristics of cumulus and nimbus clouds CORRECTLY placed?
(Solved)
In which of the following are characteristics of cumulus and nimbus clouds CORRECTLY placed?
Cumulus--------------------------- Nimbus
A. Dark grey in color---------------- Appear like bundles of cotton.
B. Mountainous in shape ---------------white in color.
C. White in color --------------------Mountainous in shape.
D. Rain bearing------------------------ Dark grey in color.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following is a preventive measure against the spread of tuberculosis?
(Solved)
Which of the following is a preventive measure against the spread of tuberculosis?
A. Clearing bushes around houses.
B. Boiling drinking water.
C. Proper disposal of human waste.
D. Living in a well-ventilated house.
Date posted:
July 30, 2019
.
Answers (1)
-
A person in the incubation period of HIV infection will show
(Solved)
A person in the incubation period of HIV infection will show
A. Signs and symptoms but test negative
B. No signs and no symptoms but test positive
C. No signs, no symptoms and test negative
D. Signs, symptoms and test positive.
Date posted:
July 30, 2019
.
Answers (1)
-
The MAIN reason why mothers are encouraged to breast feed their infants is because breast milk
(Solved)
The MAIN reason why mothers are encouraged to breast feed their infants is because breast milk
A. Boosts immunity of the infant
B. Is free from disease causing germs
C. Is at the right temperature for infants
D. Is easily digested by infants.
Date posted:
July 30, 2019
.
Answers (1)
-
The diagram below shows an improvised rain gauge.
The collecting bottle should
(Solved)
The diagram below shows an improvised rain gauge.
The collecting bottle should
A. Have the funnel sealed to its mouth
B. Be wide to collect enough water
C. Be placed above the ground
D. Be transparent for easy reading.
Date posted:
July 30, 2019
.
Answers (1)
-
A hilly area with deep channels is LIKELY to be experiencing
(Solved)
A hilly area with deep channels is LIKELY to be experiencing
A. Sheet erosion
B. Gulley erosion
C. Rill erosion
D. Splash erosion.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following pairs consists of diseases caused by lack of minerals in the diet?
(Solved)
Which of the following pairs consists of diseases caused by lack of minerals in the diet?
A. Anaemia and rickets.
B. Kwashiokor and anaemia.
C. Marasmus and Kwashiokor.
D. Rickets and marasmus.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following is the MAIN reason why eating bread after expiry date is discouraged? The bread could have
(Solved)
Which of the following is the MAIN reason why eating bread after expiry date is discouraged? The bread could have
A. Lost nutrients
B. A bad taste
C. Some micro-organisms
D. Changed its colour.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following pairs of food is preserved by smoking, salting and drying?
(Solved)
Which of the following pairs of food is preserved by smoking, salting and drying?
A. Meat and mushrooms.
B. Beans and fish.
C. Mushrooms and beans.
D. Meat and fish.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following groups of sources of energy are renewable?
(Solved)
Which of the following groups of sources of energy are renewable?
A. charcoal. kerosene. sawdust.
B. water. firewood. animal dung.
C. Diesel. wind, natural gas.
D. Biogas. petrol, coal.
Date posted:
July 30, 2019
.
Answers (1)
-
Which of the following practices will NOT result in a person getting an electric shock?
(Solved)
Which of the following practices will NOT result in a person getting an electric shock?
A. Touching sockets with wet hands.
B. Putting pencils in sockets.
C. Overloading the sockets.
D. Putting iron nails in sockets.
Date posted:
July 30, 2019
.
Answers (1)
-
The reason why improved jikos have a clay lining is to
(Solved)
The reason why improved jikos have a clay lining is to
A. Reduce the amount of heat loss
B. Reduce the space for charcoal
C. Make charcoal light faster
D. Make the jiko last longer.
Date posted:
July 30, 2019
.
Answers (1)
-
A card made in the shape of letter E and numbers 1, 2 and 3 written on it was placed in front of a mirror...
(Solved)
A card made in the shape of letter E and numbers 1, 2 and 3 written on it was placed in front of a mirror as shown in the diagram.
Which one of the following is correctly represented?
Date posted:
July 30, 2019
.
Answers (1)
-
The diagram below represents a set-up in which a ruler is fixed to a desk and its free end pulled to positions L. M. and...
(Solved)
The diagram below represents a set-up in which a ruler is fixed to a desk and its free end pulled to positions L. M. and N. At each position the free end is released to produce sound.
The set-up can be used to investigate
A. Special sounds
B. Loud and soft sound
C. Direction of sound
D. Noise pollution.
Date posted:
July 30, 2019
.
Answers (1)