Questions

Q:

In which atmospheric layer are the communication satellites located?

A) Thermosphere B) Troposphere
C) Mesosphere D) Stratosphere
 
Answer & Explanation Answer: A) Thermosphere

Explanation:

In terms of the Earth's atmosphere, they occupy regions called the thermosphere and the exosphere. The layer through which a satellite orbits depends on the satellite's function and the kind of orbit it has.

 

The thermosphere is a region of very high temperature that extends from the top of the mesosphere at around 85 kilometers (53 miles) up to 640 kilometers (400 miles) above the Earth's surface. It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit).

 

However, despite the high temperatures, the pressure is very low, so satellites don't suffer heat damage.

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Q:

Water soluble vitamin include

A) vitamin C B) niacin
C) riboflavin D) all of the above
 
Answer & Explanation Answer: D) all of the above

Explanation:
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Q:

One reason the skeletal system is important is because

A) the skeletal system creates the connective tissue and tendons that allow the body to move B) the skeletal system is responsible for controlling functions of the entire body
C) without the skeletal system, an individual would not have enough calcium to live D) the skeletal system is solely responsible for housing the body's immune system
 
Answer & Explanation Answer: A) the skeletal system creates the connective tissue and tendons that allow the body to move

Explanation:

One reason the skeletal system is important is because the skeletal system creates the connective tissue and tendons that allow the body to move.

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Q:

The State having the highest density of population is 

A) Kerala B) Tamil Nadu
C) West Bengal D) Uttar Pradesh
 
Answer & Explanation Answer: C) West Bengal

Explanation:
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Q:

What is process spawning?

Answer

When the OS at the explicit request of another process creates a process, this action is called process spawning.

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Q:

The Constitution of India was adopted on

A) 26th January, 1950 B) 26th January, 1949
C) 26th January, 1949 D) 15th August, 1947
 
Answer & Explanation Answer: C) 26th January, 1949

Explanation:
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Q:

Which type of molecule is CF4?

A) nonpolar, with a symmetrical distribution of charge B) polar, with an asymmetrical distribution of charge
C) nonpolar, with an asymmetrical distribution of charge D) polar, with a symmetrical distribution of charge
 
Answer & Explanation Answer: A) nonpolar, with a symmetrical distribution of charge

Explanation:

CF4 is tetrahedral.

Since the four 'F' atoms have the same electronegativity values, there is no bias in electron distribution toward any one.

 

Therefore, electron/charge distribution is symmetrical, which also means that the molecule is nonpolar.

 

Hence, CF4 is nonpolar molecule with a symmetrical distribution of charge.

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Q:

The power of a lens is measured in:

A) diopters B) aeon
C) lumen D) candela
 
Answer & Explanation Answer: A) diopters

Explanation:
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