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 General Science Questions

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Q:

Silicon carbide is used for

A) Making cement paste B) Cutting very hard substances
C) Making statues D) Disinfectant
 
Answer & Explanation Answer: B) Cutting very hard substances

Explanation:

Silicon_carbide_is_used_for11553927357.jpg image

Silicon Carbide is a semiconductor which has silicon and carbon. It is also called as carborundam.

Silicon carbide is used for cutting very hard substances.

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2 1791
Q:

Name the scientist who proposed the cell theory

A) Schleiden and Schwann B) Lamarck
C) Treviranus D) Whittaker and Stanley
 
Answer & Explanation Answer: A) Schleiden and Schwann

Explanation:
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2 1790
Q:

Scientific medicine typically develops in

Answer

Scientific medicine typically develops in industruial societies.

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0 1789
Q:

Fog, clouds, mist are examples of _______.

A) Aerosol B) Solid sol
C) Foam D) Gel
 
Answer & Explanation Answer: A) Aerosol

Explanation:
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6 1786
Q:

One of the following is not a function of bones

A) Protection of vital organs B) Secretion of hormones for calcium regulation in blood and bones
C) Place for muscle attachment D) Production of blood corpuscles
 
Answer & Explanation Answer: B) Secretion of hormones for calcium regulation in blood and bones

Explanation:

Secretion of hormones for calcium regulation in blood and bones is not a function of a bone.

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4 1784
Q:

Which instrument is used for photographing the Sun?

A) Galvanometer B) Potentiometer
C) Spectrophotometer D) Spectroheliograph
 
Answer & Explanation Answer: D) Spectroheliograph

Explanation:
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2 1778
Q:

Which one of the following statements is not correct?

A) Position of the sun, Earth and Moon in a straight line of 180oangle is known as syzygy. B) Syzygy conjunction causes solar eclipse.
C) Syzygy opposition causes lunar eclipse. D) Syzygy conjunction occurs at the time of perihelion only.
 
Answer & Explanation Answer: D) Syzygy conjunction occurs at the time of perihelion only.

Explanation:

In astronomy, a syzygy is a straight-line configuration of three or more celestial bodies in a gravitational system.Solar and lunar eclipses occur at times of syzygy, as do transits and occultations.

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0 1777
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

Explanation:
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2 1774