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General Science - Questions and Answers

Practice questions on General Science.

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2026. Flower colours are due to
A. chlorophyll
B. melanin
C. phytochromes
D. anthocyanins
Explanation:
2027. Dialysis is used when a patient has serious trouble with
A. liver
B. kidney
C. lung
D. heart
Explanation:
2028. Of the following metals which, one pollutes the air of a big city ?
A. Copper
B. Chromium
C. Lead
D. Cadmium
Explanation:
2029. When a colour blind male marries a normal woman not carrying the gene for colour blindness, their offsprings will be
A. normal sons and normal daughters
B. normal sons and carrier daughters
C. normal daughters and colour blind sons
D. colour blind sons and carrier daughters
Explanation:
2030. Which of the following statements are true in relation to transpiration and water movements in plants ? 1. Removing all the leaves from a plant will reduce the flow of water up the stem. 2. Covering both sides of a leaf with a plastic film will reduce both stomatal and cuticular transpiration. 3. Injecting detergents (which lower the durface tension of water) into the xylem of tree trunk could prevent water from reaching the upper branches. 4. Along most of its route through a plant, water moves by diffusion either along cell walls or across protoplasts.
A. 1, 2 and 3
B. 1, 2 and 4
C. 1, 3 and 4
D. 2, 3 and 4
Explanation: