A body can escape the gravitational pull of the earth if it is thrown up with a velocity of ________ miles/second ...? Mcqs

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A body can escape the gravitational pull of the earth if it is thrown up with a velocity of ________ miles/second ...?

(A) 35
(B) 25

(C) 12
(D) 07

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Which of the following is the main difference between electromagnets and bar magnets...?

(A) Electromagnets are stronger than bar magnets
(B) Bar magnets are permanent, but electromagnets are temporary

(C) Electromagnets are used in motors, but bar magnets are used in generators
(D) Electromagnets need electricity but bar magnets do not need electricity

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What was the first planet to be discovered using a telescope...?

(A) Uranus
(B) Jupiter

(C) Venus
(D) Mercury

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Thermal energy transfer required to change a liquid into gas without changing its temperature is called...?

(A) Latent heat of freezing
(B) Latent heat of vaporization

(C) Latent heat of boiling
(D) Latent heat of melting

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Which type of reaction produces the most harmful radiation...?

(A) Fusion reaction
(B) Fission reaction

(C) Chemical reaction
(D) Photo-Chemical reaction

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What would you find in a Vivarium...?

(A) microorganisms
(B) Animals

(C) Humans
(D) None of these

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During night plants give out more ______...?

(A) Carbon Dioxide
(B) Oxygen

(C) Hydrogen
(D) Nitrogen

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Underground water and the water on the earth’s surface is called ...?

(A) Mezosphere
(B) Ionosphere

(C) Hydrosphere
(D) None of these

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There are ______ themes in geography....?

(A) Three
(B) Four

(C) Five
(D) Seven

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Most seeds germinate between the temperature...?

(A) 10°C to 15°C
(B) 16°C to 24°C

(C) 25°C to 30°C
(D) 31°C to 35°C

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