Which of the following atmospheric layers help in radio communication...? Mcqs

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Which of the following atmospheric layers help in radio communication...?

(A) Exosphere
(B) Ionosphere

(C) Troposphere
(D) Stratosphere

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Latest MCQs

What does a cylinder measure...?

(A) Length and width
(B) Width and height

(C) Height and diameter
(D) Diameter and circumference

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When a French bean germinates in soil, a hook like structure emerges that structure is called...?

(A) Hypogeal
(B) Hypocotyl

(C) Micropyle
(D) Testa

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What prevents the earth’s atmosphere from drifting away into space...?

(A) Gravity
(B) Ozone layer

(C) Troposphere
(D) Ecosystem

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Which of the following science is considered “mother of all sciences”...?

(A) Biology
(B) Mathematics

(C) Physics
(D) Chemistry

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Sun revolves around milky way in about _____ million years....?

(A) 225
(B) 230

(C) 245
(D) 250

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Blood which heart pumps to lungs is__________...?

(A) deoxygenated blood
(B) lymph fluid

(C) atria blood
(D) oxygenated blood

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_________ means a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period....?

(A) Isobar
(B) Isobath

(C) Isohel
(D) Isohyet

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The Oort cloud is estimated to be about __________ AU away from the sun...?

(A) 100,000
(B) 200,000

(C) 300,000
(D) 400,000

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Solid wastes that are easily decompose by decomposers are called...?

(A) Biodegradable
(B) Non-biodegradable

(C) Both A and B
(D) None

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