Important General Biology MCQs - 24

Important General Biology MCQs - 24

1. The gas used in a refrigerator to cool water is___________?
(a) Nitrogen
(b) Carbon dioxide
(c) Methane
(d) Ammonia ✓

2. The average adult has a blood volume of about __________ liters.
(a) 4
(b) 5 ✓
(c) 6
(d) 7

3. The most abundant element in the universe is __________?
(a) Oxygen
(b) Hydrogen ✓
(c) Carbon Dioxide
(d) Silicon

4. The most abundant element in the Earth’s crust is __________?
(a) Oxygen ✓
(b) Hydrogen
(c) Carbon Dioxide
(d) Silicon

5. Each day human body breathe in __________ liters of air.
(a) 5,000 to 10,000
(b) 10,000 to 15,000
(c) 15,000 to 20,000 ✓
(d) 20,000 to 25,000

6. Deficiency of Vitamin-D results in __________?
(a) night blindness
(b) rickets ✓
(c) scurvy
(d) hair fall

7. The SI unit of “pressure” is _________.
(a) pascal ✓
(b) joule
(c) tesla
(d) henry

8. Entomology is the science that studies
(a) Behavior of human beings
(b) Insects ✓
(c) The Origin and history of technical and scientific terms
(d) The formation of rocks

9. Fathom is the unit of measurement of
(a) Depth of water ✓
(b) Flow of water
(c) Volume of water
(d) Density of water

10. Trachoma is a disease of the
(a) Brain
(b) Larynx
(c) Ear
(d) Eye ✓


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