As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what...? Mcqs

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As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what...?

(A) “coma” around the comet’s nucleus and a long tail that points away from the sun
(B) “coma” that points away from the sun and a long tail around the comet’s nucleus

(C) Only “coma” around the comet’s nucleus
(D) Only a long tail that points away from the sun

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What kind of weathering takes place on the valley side above the surface of the glacier...?

(A) Plucking
(B) Abrasion

(C) Chemical weathering
(D) Frost shattering

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The process which is essential for continuing and survival of species is _____...?

(A) Digestion
(B) Respiration

(C) Reproduction
(D) Excretion

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Which of the following is both endocrine and exocrine gland...?

(A) thyroid
(B) pancreas

(C) parathyroid
(D) all of these

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The type of radiation that travels in a straight line across an electric field is a/an...?

(A) Proton
(B) Electron

(C) α-particle
(D) γ-particle

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In the human body, the lungs remove which gas from the blood...?

(A) Nitrogen
(B) Hydrogen

(C) Carbon Dioxide
(D) Argon

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The number of neutron(s) in Protium is ______...?

(A) One
(B) Three

(C) Two
(D) No

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Communication satellites are used for _____...?

(A) Provide weather forecasting
(B) Mapping

(C) Telecommunication
(D) Space exploration

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Dental mirror is what type of a mirror...?

(A) Convex mirror
(B) Concave mirror

(C) Plane mirror
(D) none of these

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How many Dynes are there in one gram weight...?

(A) 993
(B) 981

(C) 250
(D) 375

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