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 General Science Questions

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Q:

Rayon is obtained from which among the following?

A) Silk B) Wood pulp
C) Wool D) Cotton
 
Answer & Explanation Answer: B) Wood pulp

Explanation:
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Q:

Why does a black board appears black in colour?

A) It reflects black colour B) It absorbs black colour
C) It reflects all colours D) It absorbs all the colours
 
Answer & Explanation Answer: D) It absorbs all the colours

Explanation:
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Q:

Major portion of the earth's crust is mainly constituted by

A) Oxygen and Iron B) Oxygen and Silicon
C) Silicon and Iron D) Silicon and Aluminium
 
Answer & Explanation Answer: B) Oxygen and Silicon

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Q:

Which work of art uses hierarchical scale?

A) painting B) sculpture
C) both a & b D) none
 
Answer & Explanation Answer: C) both a & b

Explanation:

Hierarchical scale is used in both painting and sculpture works of arts.

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Q:

Which of the following is not an autoimmune disease?

A) Vitiligo B) Alzheimer's
C) Rheumatoid arthritis D) Psoriasis
 
Answer & Explanation Answer: B) Alzheimer's

Explanation:

Auto-immune disease :: Sometimes, due to genetic and other unknown reasons, the body attack self-cells. This results in damage to the body and is called auto-immune disease.

 

From the options,

-> Rheumatoid arthritis is an autoimmune disorder in which antibodies are produced against the synovial membrane and cartilage.

-> Vitiligo causes white patches on skin also characterised as autoimmune disorder.

-> Psoriasis is a skin disease that causes itchy or sore patches of thick red skin and is also autoimmune.

-> Alzheimer's disease is a chronic neurodegenerative disease. Alzheimer's disease is due to deficiency of neurotransmitter acetylcholine.

 

Hence, Alzheimer's is not the auto-immune disease.

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Q:

While cooking, if the bottom of the vessel is getting blackened on the outside, it means that ______.

A) the food is not cooked completely B) the fuel is not burning completely
C) the fuel is wet D) the fuel is burning completely
 
Answer & Explanation Answer: B) the fuel is not burning completely

Explanation:
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Q:

Ethical decisions are derived from

Answer

Ethical decisions are derived from the ethics. Ethics is a greek word which means a customs or character.

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Q:

What are proteins made from?

A) Nucleotides B) Nucleic acids
C) Aminoacids D) Ethylene
 
Answer & Explanation Answer: C) Aminoacids

Explanation:

Proteins are made from chain of aminoacids.

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