Mass of Earth is _____...? Mcqs

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Mass of Earth is _____...?

(A) 6.0 x 10^23 kg
(B) 6.0 x 10^24 kg

(C) 6.0 ´ 10^25 kg
(D) 6.0 ´ 10^26 kg

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Frog Heart has how many chambers...?

(A) 2
(B) 3

(C) 4
(D) 5

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Ozone layer protects the Earth from __________ radiations from the Sun....?

(A) microwaves
(B) infrared

(C) X-rays
(D) ultraviolet

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The image formed by a plane mirror is ______ in size to the object....?

(A) Smaller
(B) Larger

(C) Different
(D) Same

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A slow-running pendulum clock can be speeded up by_______________...?

(A) Increasing the length of the rod
(B) Increasing the weight of the bob

(C) Reducing the length of the rod
(D) Reducing the weight of the bob

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Freezing point of water is__________...?

(A) 0°C
(B) -2°C

(C) -4°C
(D) None of above

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The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from____________ ...?

(A) Ionosphere
(B) Troposphere

(C) Mesosphere
(D) Stratosphere

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Which one of the following is not a radioactive element ...?

(A) Cadmium
(B) Thorium

(C) Radium
(D) Uranium

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If nucleon number of potassium is 39, number of neutrons will be _______...?

(A) 39
(B) 19

(C) 20
(D) 29

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Which of the following is not the organic bases of DNA...?

(A) Adenine
(B) Cytosine

(C) Thymine
(D) Uracil

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