General Science problems
- 1. Which of the following layers of the atmosphere makes Radio Communication possible?
Options- A. Troposphere
- B. Thermosphere
- C. Ionosphere
- D. Stratosphere Discuss
Correct Answer: Ionosphere
- 2. Fruits preserved in cold storage last longer because -
Options- A. exposure to humidity is increased
- B. more oxygen is available
- C. fruits are stored in a dark place
- D. the rate of respiration of Fruits is decreased Discuss
Correct Answer: the rate of respiration of Fruits is decreased
- 3. Why does a black board appears black in colour?
Options- A. It reflects black colour
- B. It absorbs black colour
- C. It reflects all colours
- D. It absorbs all the colours Discuss
Correct Answer: It absorbs all the colours
- 4. Energy travels from Sun to Earth through
Options- A. conduction
- B. convection
- C. radiation
- D. modulation Discuss
Correct Answer: radiation
- 5. The transfer of minerals from top soil to subsoil through soilwater is called?
Options- A. Percolation
- B. Conduction
- C. Leaching
- D. Transpiration Discuss
Correct Answer: Leaching
- 6. In bio fortification technique plant breeders use breeding to overcome
Options- A. Loss due to insect pests
- B. Decrease in food production
- C. Deficiencies of micronutrients and vitamins
- D. Loss due to plant diseases Discuss
Correct Answer: Deficiencies of micronutrients and vitamins
- 7. Choose the most appropriate answer:Animals active at night are called
Options- A. Diurnal
- B. Nocturnal
- C. Parasites
- D. Nacto-diurnal Discuss
Correct Answer: Nocturnal
Explanation:
Animals active at night are known as Nocturnal.
- 8. Choose the most appropriate answer:Lines joining places of equal temperature are called
Options- A. Isotherms
- B. Isohyets
- C. Isomers
- D. Isobars Discuss
Correct Answer: Isotherms
Explanation:
Lines joining places of equal temperature are called isotherms.
- 9. How many days moon takes to revolve around the earth?
Options- A. 26.3
- B. 27.3
- C. 28.3
- D. 29.2 Discuss
Correct Answer: 27.3
Explanation:
The Moon takes about 27.3 days to perform one complete orbit around the Earth.
- 10. The gentle 'seaward sloping' surface from the coasts is called __________.
Options- A. Continental shelf
- B. Continental rise
- C. Abyssal plains
- D. Submarine ridges Discuss
Correct Answer: Continental shelf
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