1. Lesson-7 How Clean is our neighbourhood

2. Activity-1 Do this Activity: Jog for a minute. Sit down quietly
Close your eyes
Now try to listen carefully the sound coming from your body.
What sound do you listen to?
Ans:

3. All living things breath all the time.
HumanBeings &animals breath through their nose.
Leaves breath through their leaves.

4. How do you feel when you:
Pass by a dirty drain?
Ans:
Come across a heap of garbage lying for several days?

5. Causes of air pollution. 1
The smoke from factories.

6. 2
The smoke from motor vehicle.

7. Other causes are: The smoke from burning garbage-
Houseflies & mosquitoes also breed at these places.Their breeding leads to various diseases.
The smoke from crackers.

8. What should we do to keep the air around us clean?
We should:
Put the garbage in a bin with a lid.
Throw the garbage at fixed public places.
Make drains for proper drainage of water.
Avoid throwing garbage in open drains.
Avoid using & throwing plastic bags in drains.

9. Continuation……. Avoid burning the garbage in the open.
Avoid defecation in the open.
Avoid spitting in the open.

10. Thus we have learnt: We fall ill if breath in the polluted air.
We have to cover our nose while passing by the garbage.
Breathing in clean & fresh air keeps us healthy.

11. 2.
If we throw food in the class room?
Ans:

12. 1.we donot keep our classroom clean? Ans:
What will happen if?
1.we donot keep our classroom clean?
Ans:

13. If we throw the plastic bags in the drain?. Ans:2
If we throw the plastic bags in the drain?.
Ans:

14. 3
If we throw food in the class room?
Ans:

15. Quiz. It is necessary for Life. It is found in Garbage.
Put the garbage
In me.