Air Around Us
Science · Grade 6 · Week 15 · 25 questions
The atmosphere is a thin blanket of gases that makes life on Earth possible. Understanding air, weather, and climate helps you make sense of the world and the environmental challenges we face.
What you'll practise
- Describe the composition of air
- Explain weather phenomena and patterns
- Distinguish between weather and climate
- Understand how human activities affect the atmosphere
All 25 questions in this Air Around Us quiz
Grade 6 Science — Air Around Us: 25 practice questions with instant scoring and explanations.
- Which gas makes up the largest percentage of Earth's atmosphere?
- Which gas do humans and animals need to breathe for survival?
- What is the process by which plants release oxygen into the air?
- Which gas is essential for the combustion of fuels?
- What is air pollution mainly caused by?
- Which of the following is a pollutant that damages the ozone layer?
- What is the main use of oxygen in living organisms?
- Which gas is released by automobiles and is a major air pollutant?
- What is smog primarily composed of?
- Which layer of the atmosphere is closest to Earth?
- What is the primary source of carbon dioxide in the air?
- Which gas is used by plants to make their food?
- What happens when sulfur dioxide is released into the atmosphere?
- Which of the following is NOT a component of air?
- What is the percentage of oxygen in the air we breathe?
- Which human activity contributes most to increasing carbon dioxide in the air?
- What is the effect of increased greenhouse gases in the atmosphere?
- Which of the following is a source of nitrogen in the atmosphere?
- What does the ozone layer protect Earth from?
- Which pollutant in the air can cause respiratory problems in humans?
- What is the role of nitrogen in the nitrogen cycle?
- Which of the following is a renewable energy source that doesn't pollute the air?
- What is atmospheric pressure caused by?
- Which statement about air is true?
- What is the main way to reduce air pollution at home?
Question 1 of 250 correct so far