Class 10 Online Courses

Chapter 6: Class 10 Chemistry Exam Tests

Class 10 Chemistry MCQs - Chapter 6

Environmental Chemistry I Atmosphere Multiple Choice Questions PDF Download - 9

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Environmental Chemistry I Atmosphere Questions & Answers PDF Download: MCQ Quiz 9

MCQ 41: Majority of the UV rays are screened out by

A) oxygen
B) nitrogen
C) ozone
D) carbon

MCQ 42: Most of the dust particles and water vapors are present in

A) troposphere
B) stratosphere
C) mesosphere
D) thermosphere

MCQ 43: Which of the following comes mainly due to the combustion of fuel used in motor vehicles?

A) chlorofluorocarbons (CFCs)
B) methane
C) carbon monoxide
D) lead compounds

MCQ 44: Which of the following causes headache and dizziness and can even cause death if inhaled for a long time?

A) sulphur dioxide
B) carbon dioxide
C) nitrogen dioxide
D) carbon monoxide

MCQ 45: Anything that destroys some part of the environment is called

A) dirt
B) virus
C) pollutant
D) bacteria

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