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- Question
The method of soil conservation in which rocks are piled up to slow down the flow of water which prevents gullies and further soil loss is called?
Options- A. Mulching
- B. Contour barriers
- C. Rock dam
- D. Terrace farming
- Correct Answer
- Rock dam
- 1. _____________ is the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration.
Options- A. Natality
- B. Mortality
- C. Immigration
- D. Emigration Discuss
- 2. Which of the following is the cleanest source of energy?
Options- A. Biofuel
- B. Fossil fuel
- C. Nuclear power
- D. Wind energy Discuss
- 3. One of the best solutions to get rid of nonbiodegradable waste is
Options- A. Burning
- B. Dumping
- C. Burying
- D. Recycling Discuss
- 4. The most productive ecosystem in the biosphere is
Options- A. Desert
- B. Open Ocean
- C. Estuary
- D. Tundra Discuss
- 5. The tree species most commonly used in social forestry is
Options- A. Peepal
- B. Gulmohar
- C. Eucalyptus
- D. Mango Discuss
- 6. Fabric made from_________ does not get wrinkled easily.
Options- A. Cotton
- B. Flax
- C. Silk
- D. Polyester Discuss
- 7. _________ affect the rate of humus formation of soil.
Options- A. Flora & Fauna
- B. Time
- C. Temperature
- D. Parent rock Discuss
- 8. A __________ thread is actually stronger than a steel wire.
Options- A. wool
- B. cotton
- C. jute
- D. nylon Discuss
- 9. ___________ is obtained by evaporation of sea.
Options- A. Sugar
- B. Iron
- C. Salt
- D. Steel Discuss
- 10. ___________ is the process of restoring a forest that once existed but was removed at some point of time in the past.
Options- A. Deforestation
- B. Reforestation
- C. Greenhouse
- D. Jhum cultivation Discuss
General Science problems
Search Results
Correct Answer: Immigration
Correct Answer: Wind energy
Correct Answer: Recycling
Correct Answer: Estuary
Correct Answer: Eucalyptus
Correct Answer: Polyester
Correct Answer: Flora & Fauna
Correct Answer: nylon
Correct Answer: Salt
Correct Answer: Reforestation
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