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Q:

Which key is used for the last action?

A) Ctrl + D B) Alt + Z
C) Ctrl + Z D) Alt + D
 
Answer & Explanation Answer: C) Ctrl + Z

Explanation:

For undo the action or last action [Ctrl + Z] is used.

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Filed Under: Computer
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Q:

What is the usual colour of Aircraft data recorder "Black box" ?

A) Black B) Orange
C) Blue D) Greeen
 
Answer & Explanation Answer: B) Orange

Explanation:
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Filed Under: General Awareness

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Q:

Mirage is due to

A) Magnetic disturbances in the atmosphere B) Equal heating of different parts of the atmosphere
C) Unequal heating of different parts of the atmosphere D) Depletion of ozone layer in the atmosphere
 
Answer & Explanation Answer: C) Unequal heating of different parts of the atmosphere

Explanation:

Mirage_is_due_to1553078535.jpg image

A Mirage is a naturally occurring optical phenomenon due to unequal heating of different parts of the atmosphere in which light rays bend to produce a displaced image of distant objects or the sky.

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Filed Under: Physics
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Q:

Which has the lowest albedo?

A) dark surfaces B) light surfaces
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) dark surfaces

Explanation:

Albedo refers to a material's ability to reflect sunlight. Since 30% of the sun's energy is reflected by the entire earth, the earth has an average albedo of 0.30.

Generally, dark surfaces have a low albedo and light surfaces have a high albedo.

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Q:

Electromagnetic waves are transverse in nature is evident by

A) Reflection B) Polarisation
C) interference D) Diffraction
 
Answer & Explanation Answer: B) Polarisation

Explanation:
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Filed Under: Physics
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Q:

Who is known as father of  Biology

A) Aristotle B) Darwin
C) Lamark D) Linneus
 
Answer & Explanation Answer: A) Aristotle

Explanation:
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Filed Under: Biology

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Q:

Which property classification would include tools?

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Q:

Hypnology is the study of

A) blood B) nerves
C) sleep D) disease
 
Answer & Explanation Answer: C) sleep

Explanation:

Hypnology is the study of sleep.

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Filed Under: General Science
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