Q:

According to Malthusian theory of population

A) Population increases in geometric ratio, food supply	B) Population increases in arithmetic ratio, food supply increases in geometric ratio
C) Population increases in a harmonic mean, food supply increases in geometric ratio	D) Population increases in a harmonic ratio, food supply increases in a arithmetic ratio

Answer & Explanation Answer: A) Population increases in geometric ratio, food supply

Explanation:

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Q:

Which of the following has become the first country in the world to pay equal salary to men and women?

A) Iceland	B) Denmark
C) Sweden	D) Russia

Answer & Explanation Answer: A) Iceland

Explanation:

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Q:

__________ (HHDD) is a technology where the conventional disk drive is combined with non-volatile flash memory, of typically 128 MB or more to cache data during normal use.

A) Hyper Hard Disk Drive	B) Hybrid Hard Disk Drive
C) Hybrid Helium Disk Drive	D) Hyper Helium Disk Drive

Answer & Explanation Answer: B) Hybrid Hard Disk Drive

Explanation:

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Q:

HEPA filters are used to remove microbes from

A) human tissues	B) air
C) medical instruments	D) liquids

Answer & Explanation Answer: B) air

Explanation:

High-efficiency particulate air (HEPA), also known as high-efficiency particulate absorbing and high-efficiency particulate arrestance, is an efficiency standard of air filter.

hepa-filters1596516018.png image

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Q:

What will be the force of attraction between two bodies weighing 20 kg and 50 kg, respectively, with a distance of 2 metre between them?

A) 16.675 x 10-11 N	B) 166.75 x 10-10 N
C) 6.67 x 10-11 N	D) 16.67 x 5-10 N

Answer & Explanation Answer: B) 166.75 x 10-10 N

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Q:

Which of the following fuels causes minimum environmental pollution?

A) Diesel	B) Kerosene
C) Hydrogen	D) Coal

Answer & Explanation Answer: C) Hydrogen

Explanation:

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Q:

Tsunami waves are the undersea occurrence of earthquake exceeding 7.5 on Richter scale. Which one of the following statements regarding this is not correct?

A) It often generates strong waves	B) The pacific coasts are most vulnerable to Tsunami waves.
C) Tsunami waves are also called high-energy tidal waves or seismic sea waves.	D) Tsunami is a Latin word.

Answer & Explanation Answer: D) Tsunami is a Latin word.

Explanation:

All are correct except D, as Tsunami is a Japanese word

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Q:

Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?

A) Greenhouse effect	B) Solid wastes
C) Pollution	D) Deforestation

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