Q: The intensity of earthquake is measured by :

A: Barometer

B: Hydrometer

C: Polygraph

D: Seismograph



Correct Option: D  [ Seismograph ]

Remark:


Q: What is the meaning of the word 'Tsunami' in Japanese?

A: High waves

B: Destructive waves

C: Harbour waves

D: none of these



Correct Option: C  [ Harbour wave ]

Remark:
Indian Ocean Tsunami occurred on 26 December, 2004 with an epicentre off the west coast of Sumatra, Indonesia.


Q: In which of the following processes energy is released ?

A: respiration

B: photosynthesis

C: ingestion

D: absorption



Correct Option: A  [ respiration ]

Remark:


Q: 'Mesothelioma' is caused by toxicity of

A: Arsenic

B: Lead

C: Mercury

D: Asbestos



Correct Option: D  [ Asbestos ]

Remark:


Q: Which one of the following is a chemical change ?

A: Burning of candle

B: Melting of wax

C: Vapourisation of water

D: Magnetising of Iron



Correct Option: A  [ Burning of candle ]

Remark:


Q: Who invented Dynamite?

A: J B Dunlop

B: Alfred Nobel

C: James Simons

D: Peter Hargreaves



Correct Option: B  [ Alfred Nobel ]

Remark:


Q: Which of the following adds/add carbon dioxide to the carbon cycle on the planet earth ?
1. Volcanic action
2. Respiration
3. Photosynthesis
4. Decay of organic matter
(Select correct answer)

A: 1, 2 and 4 only

B: 1 and 3 only

C: 2 only

D: 1, 2 and 3 only



Correct Option: A  [ 1, 2 and 4 only ]

Remark:


Q: If we add salt to pure water, its boiling point will

A: increase

B: decrease

C: remains same

D: None of the above



Correct Option: A  [ increase ]

Remark:


Q: What changes will happen to a ball of ice and water kept at exactly zero degree Celsius?

A: All ice will melt

B: All water will become ice

C: No change will happen

D: Only some ice will melt



Correct Option: C  [ No change will happen ]

Remark:


Q: Cobalt-60, commonly used in radiation therapy, emits :

A: Alpha rays

B: Beta rays

C: Gamma rays

D: X-rays



Correct Option: C  [ Gamma rays ]

Remark:
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