Class 10 Chemistry MCQs - Chapter 10

The Atmosphere Multiple Choice Questions PDF Download - 5

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The Atmosphere Questions & Answers PDF Download: MCQ Quiz 5

MCQ 21: The thermosphere is situated above

A) 12 Km

B) 50 Km

C) 80 Km

D) 10 Km

MCQ 22: The upset caused in the natural balance of concentration of greenhouse gases is called

A) pollution

B) global warming

C) atmospheric poisoning

D) earth heating

MCQ 23: The temperature variation in the stratosphere is about

A) −5 °C to 50 °C

B) −5 °C to 50 °C

C) 10 °C to 20 °C

D) −55 °C to −5 °C

MCQ 24: The layer which protects the earth from being hit by meteoroids is

A) troposphere

B) mesosphere

C) thermosphere

D) stratosphere

MCQ 25: Percentage of argon in the air is

A) 0.78

B) 0.21

C) 0.0093

D) 0.0004

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