Questions

Q:

Which base is present in lime water?

A) Sodium hydroxide B) Magnesium hydroxide
C) Calcium hydroxide D) Ammonium hydroxide
 
Answer & Explanation Answer: C) Calcium hydroxide

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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The higher you climb, the more difficult it _____ to breathe.

A) became B) becomes
C) has become D) is becoming
 
Answer & Explanation Answer: B) becomes

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Q:

Homeostasis is the condition in which the body maintains

A) a relatively stable internal environment within limits B) a changing state within an unlimited range
C) the lowest possible energy usage D) a static state with no deviation from preset points
 
Answer & Explanation Answer: A) a relatively stable internal environment within limits

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Q:

In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.

 

Hound

 

A) Critic B) Migrate
C) Beagle D) Variable
 
Answer & Explanation Answer: C) Beagle

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Q:

Alternate freezing and thawing often leads to ______.

A) Creep B) Slumps
C) Mud flows D) Earth flows
 
Answer & Explanation Answer: A) Creep

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Q:

If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?

A) lUV < lIR < lVIS B) lUV > lVIS > lIR
C) lUV > lIR > lVIS D) lUV < lVIS < lIR
 
Answer & Explanation Answer: D) lUV < lVIS < lIR

Explanation:

Infrared radiation, what we experience as heat when we hold our hand near a warm object, is somewhat longer wavelengths than visible light. Visible light is simply electromagnetic radiation in a range of wavelengths that our eyes are sensitive to. Visible wavelengths range from 0.0007 milimeters for red light, through orange, yellow, green, and blue, to 0.0004 milimeters for violet light. Ultraviolet is shorter wavelengths than violet.

Longer the wavelength,lower the energy

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Q:

The uppermost layer over the earth's surface is called the ______.

A) Mantle B) Core
C) Crust D) Exosphere
 
Answer & Explanation Answer: C) Crust

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Filed Under: General Science
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Q:

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

A policeman caught her.

 

A) She was caught by a policeman. B) She is catch by a policeman.
C) She caught by a policeman. D) She is caught by a policeman.
 
Answer & Explanation Answer: A) She was caught by a policeman.

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