Class 3 (SSC) • EVS भाग 1 - विज्ञान (परिसर अभ्यास)Chapter 6: Our Need for Air⭐ Topic 1
Our Need for Air
Air is essential for all living things to breathe, and clean air is important for keeping us healthy and our environment safe.
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We need air to breathe, and it contains oxygen which our body uses to stay alive and get energy from food.
Quick revision
Remember these!
- Air is essential for breathing.
- It contains oxygen for energy.
- Air is all around us, invisible.
- It also helps plants grow (photosynthesis).
- Polluted air comes from smoke, dust, vehicles.
- It can make people sick.
- We can plant trees to keep air clean.
- Avoiding burning waste also helps.
Words to know
our need for airssc std 3