Which of the following noble gases is not present in atmosphere...? Mcqs

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Which of the following noble gases is not present in atmosphere...?

(A) Argon
(B) Helium

(C) Radon
(D) Xenon

✅ Correct Answer: Radon

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Source: This question is taken from the Everyday Science

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Noble gases are stable because they contain _____...?

(A) 4 electrons in valence shell
(B) 6 electrons in valence shell

(C) 8 electrons in valence shell
(D) 10 electrons in valence shell

✅ Correct Answer: 8 electrons in valence shell

Comments

Source: This question is taken from the Everyday Science

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The amount of solid waste or concentration of gases other than oxygen increase in atmosphere is called...?

(A) Air pollution
(B) Ozone depletion

(C) Acid rain
(D) Greenhouse effect

✅ Correct Answer: Air pollution

Comments

Source: This question is taken from the Everyday Science

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The planet retains an atmosphere when...?

(A) Gravity is low and temperature of atmosphere is great
(B) Gravity and temperature both are great

(C) Gravity and temperature both are constant
(D) Gravity is great and temperature of atmosphere is low

✅ Correct Answer: Gravity is great and temperature of atmosphere is low

Comments

Source: This question is taken from the Everyday Science

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The sky appears blue because the earth’s atmosphere __________...?

(A) Scatters blue light
(B) Reflects blue light

(C) Transmits blue light
(D) Has actual blue cover

✅ Correct Answer: Scatters blue light

Comments

Source: This question is taken from the Everyday Science

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