Class 6 Science MCQs - Chapter 1

Air and Atmosphere Multiple Choice Questions (MCQ Quiz) PDF Download - 9

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The Book Air and atmosphere Multiple Choice Questions and Answers (MCQs), air and atmosphere MCQ Quiz PDF, test 9 to study online class 6 science certificate courses. Practice The Atmosphere MCQs PDF, air and atmosphere quiz questions and answers for online elementary school classes. The e-Book Air and Atmosphere MCQ App Download: the atmosphere, gas properties and air, air and processes test prep for virtual online school.

The Multiple Choice Question (MCQ Quiz): There is no boundary between atmosphere and space, so the density of atmosphere decreases with PDF, "Air and Atmosphere" App Download (Free) with increasing altitude, same height, constant height, and decreasing height choices for online elementary school classes. Solve the atmosphere quiz questions, download Google eBook (Free Sample) for school certificate.

Class 6 Science MCQs: Air and Atmosphere Quiz PDF Download - 9

MCQ: There is no boundary between atmosphere and space, so the density of atmosphere decreases with

A) same height

B) increasing altitude

C) constant height

D) decreasing height

MCQ: The chemical formula of ozone is

A) O₃

B) O₂

C) O₄

D) O₅

MCQ: A blanket of gases surrounding the planet is known as

A) ozone

B) temperature

C) season

D) atmosphere

MCQ: Iron rusts when it comes in contact with

A) carbon dioxide & water

B) oxygen & water

C) many gases

D) nitrogen & oxygen

MCQ: A reaction in which oxygen is used up for the production of thermal and light energy is known as

A) production

B) combustion

C) reaction

D) respiration

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