What is the name of the branch of the science that studies the ocean...? Mcqs

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What is the name of the branch of the science that studies the ocean...?

(A) Oceanography
(B) Algology

(C) Phology
(D) Orintology

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Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ...?

(A) Zeolites
(B) Sulphonides

(C) Lime
(D) Nitrates

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The tendency of the object to remain at rest or, if moving, to continue its uniform motion in a straight line is called...?

(A) Inertia
(B) Momentum

(C) Friction
(D) Gravity

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The mesosphere ranges from ________ to _________...?

(A) 46 km to 85 km
(B) 48 km to 85 km

(C) 50 km to 85 km
(D) 52 km to 85 km

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Which is the most abundant element in the atmosphere...?

(A) Nitrogen
(B) Hydrogen

(C) Nickle
(D) Oxygen

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Which isotope is used to study the uptake of phosphorus containing fertilizers...?

(A) Phosphorus - 32
(B) Carbon - 14

(C) Lead - 210
(D) Nitrogen - 15

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Which of the following cells are Colourless...?

(A) Red blood cells
(B) White blood cells

(C) Monocytes
(D) platelets

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Border line which separates outer space from Earth’s atmosphere is known as___________...?

(A) Durand line
(B) Space line

(C) Venus line
(D) Karman line

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An image formed by a convex lens is called...?

(A) Real and Inverted
(B) Real and Upright

(C) Virtual and Inverted
(D) Virtual and Upright

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You can sprinkle iron filings around a magnet. Where will iron filings be attracted more...?

(A) At the center of the magnet
(B) Equally all over the magnet

(C) Nowhere, as iron filings are not attracted to magnets
(D) At the poles

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