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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Leach has ________ number of brains....?

(A) Zero
(B) 32

(C) 36
(D) None of these

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Which of the following is not a characteristic of a wave...?

(A) An amplitude
(B) Period

(C) Mass
(D) Velocity

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Sunlight is composed of___________...?

(A) Three colours
(B) six colours

(C) seven colours
(D) eight colours

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Which one of the following represents a chemical change_________...?

(A) Sublimation of iodine
(B) Heating a platinum wire in a Bunsen flame

(C) Heating of mercuric oxide powder
(D) Evaporation of alcohol

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What is the harm from the depletion of Earth's Ozone Layer...?

(A) The average operation of the Earth's surface will increase gradually
(B) The oxygen content of the atmosphere will decrease

(C) Increased amount of UV rays will reach Earth's surface
(D) Sea levels will rise as the glaciers' caps will gradually melt

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The gas heater gives us heat by __________...?

(A) Radiation
(B) Conduction

(C) Convection
(D) Environmental pressure

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In the wild primary diet of Pandas is _______...?

(A) [\"Bamboos\",\"Fruits\",\"Insects\",\"Small Birds\"]
(B) empty

(C) empty
(D) empty

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Which of the following is correct for the simple machines...?

(A) Simple machines magnify the force you use
(B) Simple machines change the direction of the force

(C) Simple machines make things go faster
(D) Simple machines make things move slower

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The earth is part of a galaxy called...?

(A) Andromeda Galaxy
(B) Triangulum Galaxy

(C) Milky Way Galaxy
(D) Pinwheel Galaxy

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