Atmosphere Quiz - CBSE Class 6 Science

Free practice quiz: Atmosphere (CBSE Class 6 Science). 18 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 18 multiple-choice questions on Atmosphere, and 18 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. What is the atmosphere mainly composed of?

   1. Oxygen
   2. Carbon Dioxide
   3. Nitrogen
   4. Hydrogen
   Show answer

   Answer: C. Nitrogen

   The atmosphere is mainly composed of nitrogen, which makes up about 78% of the Earth's atmosphere.

2. What is the primary function of the ozone layer?

   1. To trap greenhouse gases
   2. To block harmful UV radiation
   3. To regulate temperature
   4. To provide oxygen
   Show answer

   Answer: B. To block harmful UV radiation

   The ozone layer protects living organisms by blocking harmful ultraviolet (UV) radiation from the sun.

3. What can cause the greenhouse effect?

   1. Burning fossil fuels
   2. Planting trees
   3. Conserving water
   4. Practicing recycling
   Show answer

   Answer: A. Burning fossil fuels

   Burning fossil fuels increases the concentration of greenhouse gases like carbon dioxide in the atmosphere, enhancing the greenhouse effect.

4. What is the primary method by which heat is transferred from the Earth's surface to the atmosphere?

   1. Radiation
   2. Conduction
   3. Convection
   4. Evaporation
   Show answer

   Answer: C. Convection

   Heat is primarily transferred from the Earth's surface to the atmosphere through the process of convection, where warm air rises and cool air sinks.

5. Given a scenario where a location experiences constant heavy rainfall, what might be a contributing factor?

   1. High altitude
   2. Proximity to oceans
   3. Desert conditions
   4. Urban heat island
   Show answer

   Answer: B. Proximity to oceans

   Locations near oceans often experience heavy rainfall due to moisture from the ocean being carried inland by winds, contributing to precipitation.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which layer of the atmosphere do we live in?
2. What gas is essential for respiration in humans?
3. What happens to air pressure as altitude increases?
4. Identify the greenhouse gas among the following options.
5. What is a major consequence of the depletion of the ozone layer?
6. Which gas is primarily responsible for acid rain?
7. How does temperature generally change with altitude in the troposphere?
8. Why is the thermosphere very hot?
9. Explain how urbanization affects local climate.
10. What is the role of water vapor in the atmosphere?
11. How would the world change if the ozone layer were completely depleted?
12. If a community in a coastal region experiences rising sea levels, what atmospheric change might this be linked to?
13. If a sudden drop in air temperature is noted, what atmospheric phenomenon could cause this?

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