Q:

Lightning is produced when

A) Similar charges of electricity rush towards each other and then get repelled	B) clouds strike against impurities in air and the friction burns up these impurities
C) strong opposite charges in different clouds break down the resistance offered by the intervening air	D) water vapour produces electricity in the clouds

Answer & Explanation Answer: C) strong opposite charges in different clouds break down the resistance offered by the intervening air

Explanation:

When the resistance of the air between breaks down the current flows from the positive cloud to the negative cloud in a flash which we call lightning . The difference of potential involves is very high.

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Filed Under: Physics

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Q:

Most important weather phenomena occur in the

A) Troposphere	B) Stratosphere
C) Ionosphere	D) Thermosphere

Answer & Explanation Answer: D) Thermosphere

Explanation:

Most important weather phenomena occur in the layer of Thermosphere.

Most of the weather phenomenon occur in the layer of Troposphere.

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Q:

The only known ruler in the history of india to have fixed the prices of different commodities, rigidly enforced quality control and ensured easy availability of essential commodities was

A) lltutmish	B) Alauddin Khalji
C) Raziya	D) Gayasuddin Tughluq

Answer & Explanation Answer: B) Alauddin Khalji

Explanation:

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Filed Under: Indian History

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Q:

Which is not a topography produced by volcanocity

A) Cones	B) Crater
C) Caldera	D) Cirque

Answer & Explanation Answer: D) Cirque

Explanation:

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Filed Under: World Geography

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Q:

Which one of the following pairs is correctly matched

A) West Bengal - Highest density of population	B) Himachal Pradesh - Highest sex ratio
C) Uttar Pradesh - Highest percentage of Scheduled Castes population	D) Nagaland - Highest percentage of Scheduled Tribes population

Answer & Explanation Answer: A) West Bengal - Highest density of population

Explanation:

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Filed Under: Indian Economy

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Q:

Second and third class levers are differentiated by

A) the location of the load	B) the location of the fulcrum
C) the presence of multiple loads	D) the type of fulcrum present

Answer & Explanation Answer: A) the location of the load

Explanation:

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Q:

In a nucleosome, the DNA is wrapped around

A) histone octamer	B) helix
C) double helix	D) None of the above

Answer & Explanation Answer: A) histone octamer

Explanation:

In_a_nucleosome,_the_DNA_is_wrapped_around1542780589.jpg image

In a nucleosome, the DNA is wrapped around histone octamer.

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Filed Under: Biology
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Q:

Amoeba belongs to the phylum

A) Protozoa	B) Annelida
C) Porifera	D) Platyhelminthes

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