Which among the following waves is used for communication by artificial satellites ...? Mcqs

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Which among the following waves is used for communication by artificial satellites ...?

(A) Micro waves
(B) Radio waves

(C) A. M.
(D) Infra-red waves

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The time in which Earth completes its revolution around the Sun is________...?

(A) 365.25 days
(B) 340 days

(C) 325 days
(D) 360 days

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Which organ is made up of air carrying tubes and tiny sacs...?

(A) Brain
(B) Lungs

(C) Liver
(D) Heart

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Freezing point of water at Fahrenheit Scale is...?

(A) 0 °F
(B) 212 °F

(C) 32 °F
(D) -32 °F

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Which animal have a thick layer of fat under their skin which protects them from the cold temperature of the sea...?

(A) Blue Whale
(B) Starfish

(C) Crocodile
(D) None

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How many scales are there to measure temperature...?

(A) 1
(B) 2

(C) 3
(D) 4

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The disease “Itai Itai “is caused by____________...?

(A) Carbon
(B) Cadmium

(C) Manganese
(D) None of these

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__________ contains the ozone layer....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Ionosphere

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Which led to the diversification of life...?

(A) Mesozoic Era
(B) Paleozoic Era

(C) Cenozoic Era
(D) Precambrian Time

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The offspring of a bear is called...?

(A) Cub
(B) Pup

(C) Calf
(D) Fawn

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