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Q:

The _________ keeps the average temperature of the Earth fairly steady.

A) biosphere B) heliosphere
C) atmosphere D) photosphere
 
Answer & Explanation Answer: C) atmosphere

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Q:

Indian Space Research Organisation (ISRO) and Jet Propulsion Laboratory (JPL) of NASA are working on world’s most expensive earth-imaging satellite to use dual frequency. Its name is ______

A) Cartosat B) NISAR
C) APM D) NIJAR
 
Answer & Explanation Answer: B) NISAR

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Q:

Which of the following is NOT an effect of Noise Pollution?

A) Death of Animals B) Tinnitus
C) Hypertension D) Ozone Depletion
 
Answer & Explanation Answer: D) Ozone Depletion

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Q:

In the gamma decay of a nucleus

A) the mass number of the nucleus changes whereas its atomic number does not change B) the mass number of the nucleus does not change whereas its atomic number changes
C) both the mass number and the atomic number of the nucleus change D) neither the mass number nor the atomic number of the nucleus changes
 
Answer & Explanation Answer: D) neither the mass number nor the atomic number of the nucleus changes

Explanation:

The emission of gamma rays does not alter the number of protons or neutrons in the nucleus but instead has the effect of moving the nucleus from a higher to a lower energy state (unstable to stable)

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Q:

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________.

 

A) 2g B) g/4
C) g/2 D) 4g
 
Answer & Explanation Answer: D) 4g

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Q:

An Odometer is an instrument used to measure ____ in automobiles.

A) direction B) distance
C) odour D) speed
 
Answer & Explanation Answer: B) distance

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Q:

The Equator does NOT pass through which of the following countries?

A) Kenya B) Mexico
C) Indonesia D) Brazil
 
Answer & Explanation Answer: B) Mexico

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Q:

ABM stands for ______.

A) Anti Belligerent Mine B) Anti Base Machine
C) Anti Body Mechanics D) Anti Ballistic Missile
 
Answer & Explanation Answer: D) Anti Ballistic Missile

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