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Q:

Who began public health and sanitation systems?

A) Mexicans B) Egyptians
C) Romans D) Chinese
 
Answer & Explanation Answer: C) Romans

Explanation:

Romans (753 BC - AD 410) began public health and sanitation systems.

 

Romans established the first public health and sanitation systems by building sewers and aqueducts.

Romans1531898190.jpg image

They also treated diseases with diet, exercise and meditation.

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Filed Under: World History
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Q:

The part of earth where life exists

A) Biosphere B) Atmosphere
C) Lithosphere D) Hydrosphere
 
Answer & Explanation Answer: A) Biosphere

Explanation:

The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life is called Biosphere.

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Filed Under: General Awareness
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Q:

Dry ice is nothing but

A) Solid carbon dioxide B) Baking soda
C) Gaseous carbon dioxide D) Carbon monoxide
 
Answer & Explanation Answer: A) Solid carbon dioxide

Explanation:

dry-ice1531812120.jpg image

 

Dry ice is solid form of carbon dioxide, used as a cooling agent.

 

It lower temperature than that of water ice and not leave any residue.

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Filed Under: Chemistry
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Q:

Nucleic acids are polymers of

A) Nucleotides B) Aminoacids
C) Proteins D) Sugars
 
Answer & Explanation Answer: A) Nucleotides

Explanation:

Nucleic acids are polymers of individual nucleotide monomers.

Each nucleotide is composed of three parts:

a 5-carbon sugar,

a phosphate group, and

a nitrogenous base.

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Filed Under: Chemistry
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Q:

1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 + 1 + 1 = ?

A) 0 B) 2
C) 12 D) 10
 
Answer & Explanation Answer: C) 12

Explanation:

Given 

1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 + 1 + 1

Using BODMAS Rule,

As multiplication precedes addition, 1 x 0 = 0, 

Now, 10 + 0 + 1 + 1 = 10 + 2 = 12.

 

Hence, 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 x 0 + 1 + 1 = 12.

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Filed Under: Problems on Numbers
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Q:

Velocitation is the tendency to

A) be traveling at a speed that is faster than perceived B) be traveling at a speed that is slower than perceived
C) Both A & B D) None of the above
 
Answer & Explanation Answer: A) be traveling at a speed that is faster than perceived

Explanation:

Velocitation is a phenomenon caused by driving for long periods at high speeds. A driver may experience velocitation when coming off of the highway; the change in speed makes him or her think that the car is going much slower than it actually is.

 

Velocitation is the tendency to be traveling at a speed that is faster than perceived.

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Filed Under: Physics
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Q:

The outer membrane that covers the lungs

A) Dura mater B) pleura
C) Pia mater D) Myelin sheath
 
Answer & Explanation Answer: B) pleura

Explanation:

The pleura is the membrane that covers the lungs, according to InnerBody. The pleura consists of two layers, with the parietal pleura forming the membrane's outer layer and the visceral pleura forming the membrane's inner layer.

 

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Filed Under: Biology
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Q:

Ration is most similar in meaning to

A) Debt B) Allowance
C) Whole D) Rear
 
Answer & Explanation Answer: B) Allowance

Explanation:

Ration synonyms are allowance, consignment, quota,...

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Filed Under: Analogy
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