Montreal Protocol 1987 was__________...? Mcqs

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Montreal Protocol 1987 was__________...?

(A) Treaty among nations to reduce nuclear arsenals
(B) Climate control treaty

(C) Treaty to protect ozone layer
(D) Trade policy about tarrifs

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The height at which atmospheric pressure declines by a factor of e (an irrational number equal to 2.71828) is called __________....?

(A) Average height (H)
(B) Scale height (H)

(C) Mean height (H)
(D) Standard height (H)

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Which natural element has the highest melting point...?

(A) Iron
(B) Tungsten

(C) Copper
(D) Silver

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Which one of the following is correct statement...?

(A) Oxidation occurs at cathode
(B) Reduction occurs at anode

(C) Reduction occurs at cathode
(D) Ions lose electrons at cathode

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10^-3 second is called as _____...?

(A) Millisecond
(B) Microsecond

(C) Nanosecond
(D) Picosecond

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A telescope is an instrument that gathers _______ from distant sources....?

(A) Sound
(B) Light

(C) Heat
(D) Water

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Quantity of fresh air required for a man is 1000 cubic feet of air for every____________...?

(A) 5 minutes
(B) 10 minutes

(C) 15 minutes
(D) 20 minutes

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For every two K⁺ that are actively transported inwards, how many Na⁺ are pumped out of the cell...?

(A) 1
(B) 2

(C) 3
(D) 4

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____________ contains 75–80 % of the mass of the atmosphere....?

(A) Stratosphere
(B) Mesosphere

(C) Thermosphere
(D) Troposphere

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The type of reproduction in which only one parent is involved...?

(A) Asexual Reproduction
(B) Sexual Reproduction

(C) Fragmentation
(D) Binary Fission

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