Questions

Q:

Who developed the idea of Crop rotation?

A) Lily Thomas B) Carrot Cornwick
C) Cabbage Carlson D) Turnip Townsend
 
Answer & Explanation Answer: D) Turnip Townsend

Explanation:
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Q:

First Indian to score a triple century in Test Cricket

A) Sachin Tendulkar B) Virendra Sehwag
C) Sourav Ganguly D) MS Dhoni
 
Answer & Explanation Answer: B) Virendra Sehwag

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Q:

Sunspots appear dark because they are

A) hotter than the rest of the Sun's surface. B) more magnetic than the rest of the Sun's surface. 
C) cooler than the rest of the Sun's surface. D) None of the above
 
Answer & Explanation Answer: C) cooler than the rest of the Sun's surface.

Explanation:

Sunspots are a magnetic phenomenon on the Sun.

The reason a sunspot appears dark is that they are cooler than the rest of the Sun's surface and also the gas inside the spot where the magnetic field is strongest is only emitting about 1/4 as much light as from the rest of the solar surface. 

 

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Q:

Find the kinetic energy (in J) possessed by a body of mass 10 kg moving with a velocity of 5 m/s.

A) 25 B) 125
C) 62.5 D) 50
 
Answer & Explanation Answer: B) 125

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Q:

Which of the following planet is also known as 'Earth's twin'?

A) Mercury B) Venus
C) Jupiter D) Saturn
 
Answer & Explanation Answer: B) Venus

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Q:

A ________________ is known by different names in different parts of the world. It is called a ‘hurricane’ in North America.

A) funnel B) whirlpool
C) cyclone D) twister
 
Answer & Explanation Answer: C) cyclone

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Q:

Convert decimal number 106 to binary.

A) 1101000 B) 1101010
C) 1100110 D) 1110000
 
Answer & Explanation Answer: B) 1101010

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Q:

What type of lens is used to correct vision of a person suffering from Myopia?

A) Convex lens B) Concave lens
C) Crossed lens D) Cylindrical lens
 
Answer & Explanation Answer: B) Concave lens

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