Class 6 Online Courses

Chapter 1: Class 6 Science Exam Tests

Class 6 Science MCQs - Chapter 1

Air and Atmosphere Quiz Questions and Answers PDF - 11

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The Quiz: An odorless, invisible gas that makes about 20%-22% of the earth's atmosphere is known as; "Air and Atmosphere" App Download iOS & Android (Free) with answers nitrogen, oxygen, argon and carbon to learn e-learning courses. Study atmosphere basic facts quiz questions, download Amazon eBook (Free Sample) for online education programs.

Air and Atmosphere Questions & Answers PDF Download: MCQ Quiz 11

MCQ 51: An odorless, invisible gas that makes about 20%-22% of the earth's atmosphere is known as

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

MCQ 52: A thin layer that is held in place by gravity and provides us with oxygen is known as

A) temperature
B) season
C) atmosphere
D) weather

MCQ 53: The percentage composition of nitrogen in air is

A) 58%
B) 68%
C) 78%
D) 88%

MCQ 54: The second step of fractional distillation is heating the mixture so that components evaporate at their

A) boiling point
B) freezing point
C) neutral point
D) none of them

MCQ 55: In respiration, living organisms take in oxygen and give out

A) water vapor
B) argon
C) carbon dioxide
D) nitrogen

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Air and Atmosphere App (Android & iOS)

Air and Atmosphere App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)