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Q:

What was the city of Timbuktu best known for?

A) Trade B) Gold
C) Diamonds D) Tea
 
Answer & Explanation Answer: A) Trade

Explanation:

The great Sahara Desert created an opportunity for wealth by trading to peoples who live in and around the region. The city of Timbuktu was built as a result of this trade.

 

Hundreds of years ago, salt was a very valuable commodity. It was valued for its taste as well as its ability to preserve food. One of the most productive areas for producing salt was the Sahara Desert, and the city of Timbuktu was built to capitalize upon this trade.

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Filed Under: Indian Geography
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Q:

The principal quantum number indicates what property of an electron?

A) energy of electron B) distance of electron from nucleus
C) both a & b D) number of subshells
 
Answer & Explanation Answer: C) both a & b

Explanation:

The principal quantum number is the property of an electron which determines the energy of electron and the distance of electron from the nucleus of an atom.

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Filed Under: Chemistry
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Q:

One function of sphincter muscles is to

A) secrete digestive juices into the GI tract B) grind large food particles
C) trigger hormone release D) control the passage of food through the GI tract
 
Answer & Explanation Answer: D) control the passage of food through the GI tract

Explanation:
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Filed Under: Biology
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

 

To quit on someone

 

A) To fire someone from a job. B) To cheat with someone.
C) To give up on a difficult person. D) To stop helping someone, especially when the support is needed.
 
Answer & Explanation Answer: D) To stop helping someone, especially when the support is needed.

Explanation:
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Filed Under: English
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Q:

What two countries have nearly 50% of global coal reserves?

A) Iran & USA B) USA & China
C) Russia & USA D) Brazil & Russia
 
Answer & Explanation Answer: C) Russia & USA

Explanation:

United States and Russia have together almost 400 billion tones. Which represents nearly 50% of world's reserves of coal.

 

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Filed Under: World Geography
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Q:

Guernica, the world famous painting was painted by 

A) Van Gogh B) Michelangelo
C) Picasso D) Leonardo Da Vinci
 
Answer & Explanation Answer: C) Picasso

Explanation:
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Filed Under: World History

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Q:

Which country has recorded second highest COVID19 death toll in world after China?

A) Italy B) Iran
C) India D) Japan
 
Answer & Explanation Answer: A) Italy

Explanation:
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Filed Under: General Awareness
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Q:

An electron and a proton starting from rest get accelerated through potential difference of 100kV. The final speeds of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct?

A) Ve > Vp B) Ve < Vp
C) Ve = Vp D) Cannot be determined
 
Answer & Explanation Answer: A) Ve > Vp

Explanation:

Both when accelerated through a potential difference of 100KV, they will have the same energy. The mass of the electron is less than the mass of a proton, hence it will move faster(momentum).

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Filed Under: Physics
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