Q:

In which year was the first solid state integrated circuit demonstrated?

A) 1970s	B) 1960s
C) 1950s	D) 1980s

Answer & Explanation Answer: C) 1950s

Explanation:

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Filed Under: Inventions

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Q:

Which one of the following is the Highest Award in India ?

A) Bharat Ratna	B) Padma Bushan
C) Khel Ratna	D) None of these

Answer & Explanation Answer: A) Bharat Ratna

Explanation:

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Filed Under: Honours and Awards
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Q:

Solely means

A) exclude	B) include
C) only	D) rival

Answer & Explanation Answer: C) only

Explanation:

Solely means only, simply or merely.

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Filed Under: English
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Q:

DNA is copied during a process called

A) transcription	B) transformation
C) translation	D) replication

Answer & Explanation Answer: A) transcription

Explanation:

DNA is copied during a process called Transcription. It is the first step of gene expression, in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase.

dna_is_copied_during_a_process_called1552049220.jpg image

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Filed Under: Biology
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Q:

Which statement is NOT true about polymers?

A) Polymers are large molecules composed of small monomeric units	B) Polymes are macromolecules
C) Polymers are complex molecules composed of random sequences of atoms	D) All the above

Answer & Explanation Answer: C) Polymers are complex molecules composed of random sequences of atoms

Explanation:

Polymers are complex molecules composed of random sequences of atoms is the only statement which is not true regarding polymers.

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Filed Under: Chemistry
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Q:

Tap water is placed in an open pad and allowed to evaporate. After some time the temperature of water

A) increases to a great extent	B) increases slightly
C) decreases slightly	D) decreases rapidly

Answer & Explanation Answer: C) decreases slightly

Explanation:

Evaporation causing cooling.Here the evaporation is less. Therefore cooling is less.

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Filed Under: Physics

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Q:

Nitrogen Fixation is carried out primarily by

A) Plants	B) Humans
C) Consumers	D) Bacteria

Answer & Explanation Answer: D) Bacteria

Explanation:

The process by which bacteria convert nitrogen gas (N2) into ammonia (NH3) is called Nitrogen Fixation.

The conversion of nitrogen from one form to another in the nitrogen cycle is carried out primarily by Nitrogen Fixing Bacteria such as Azotobacter.

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Filed Under: Biology
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Q:

The land mass of India has an area of ______ million square km.

A) 1.28	B) 2.28
C) 3.28	D) 4.28

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