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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The chemical formula for methane gas is...?

(A) CH8
(B) CH6

(C) CH4
(D) CH2

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Heat is a form of energy associated with ____...?

(A) Atomic Stability
(B) Molecular Motion

(C) Nuclear Reaction
(D) Electromagnetic Radiation

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How many major gases have been used in re​frig​er​a​tors since its invention...?

(A) 2
(B) 3

(C) 4
(D) 5

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Which of the following material is more elastic...?

(A) Rubber
(B) Glass

(C) Steel
(D) Wood

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Earthquakes occur most frequently at __________...?

(A) Plate boundaries
(B) Plate surface

(C) Ocean beds
(D) All of the above

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What occurs in metaphase of mitosis...?

(A) Chromosome line up on the equator of the cell
(B) Chromatids reach the poles of the spindle

(C) Chromatids separate and move to opposite poles
(D) Chromosomes start to coil up and become visible

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Lever, pulley, wedge, wheel, inclined plane and screw is/are an examples of...?

(A) Simple Machine
(B) Compound Machine

(C) Both A and B
(D) None

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All living organisms are classified into _______ kingdoms under the system proposed by Whittaker (1969)....?

(A) 5
(B) 6

(C) 7
(D) 8

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When sound waves travel from air to water which of the following quantities remains unchanged...?

(A) Speed
(B) Frequency

(C) Intensity
(D) Wavelength

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