Pollution Quiz - CBSE Class 6 Science

Free practice quiz: Pollution (CBSE Class 6 Science). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This CBSE Class 6 Science practice quiz has 20 multiple-choice questions on Pollution, and 20 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 pollution?

   1. Addition of harmful substances
   2. Removal of waste
   3. Planting trees
   4. Clearing forests
   Show answer

   Answer: A. Addition of harmful substances

   Pollution refers to the addition of harmful substances into our environment, which can damage ecosystems and affect health.

2. What is the primary source of land pollution?

   1. Littering
   2. Recycling
   3. Planting trees
   4. Natural decomposition
   Show answer

   Answer: A. Littering

   Littering leads to land pollution as it introduces waste materials that can contaminate the soil.

3. What is the effect of acid rain?

   1. It nourishes plants
   2. It harms aquatic life
   3. It improves air quality
   4. It has no effect
   Show answer

   Answer: B. It harms aquatic life

   Acid rain can lower the pH of water bodies, harming aquatic life and disrupting ecosystems.

4. What are bioindicators?

   1. Non-living indicators
   2. Living organisms that indicate environmental health
   3. Synthetic materials
   4. Pollutants in water
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   Answer: B. Living organisms that indicate environmental health

   Bioindicators are living organisms used to assess the health of an environment, often useful in studying pollution levels.

5. What is an example of thermal pollution?

   1. Warm water from factories in rivers
   2. Oil spills
   3. Plastic waste
   4. None of the above
   Show answer

   Answer: A. Warm water from factories in rivers

   Thermal pollution occurs when industries discharge warm water into rivers, disrupting aquatic ecosystems.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Which of the following is a type of water pollution?
2. What are the major causes of air pollution?
3. Which gas is primarily responsible for global warming?
4. What can be done to reduce plastic pollution?
5. How does deforestation contribute to pollution?
6. Which of these pollutants is a heavy metal?
7. Which of the following living organisms can be affected by pollution?
8. What is the role of plants in reducing air pollution?
9. Which pollutant is commonly found in vehicle emissions?
10. What is the impact of noise pollution on humans?
11. What contributes to soil pollution?
12. How can industrial waste be managed to reduce pollution?
13. What can be a consequence of marine pollution?
14. Create a mathematical equation to determine the amount of waste produced by a factory each week. If a factory produces 200 kg of waste daily, how much waste does it produce in one week?
15. If a city’s air quality index is 150 on one day and 100 the next, what is the average air quality index for the two days?

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