How will you prove that air contains dust particles?
Answers
Answer:
The presence of dust particles in the air varies from time to time and place to place. We inhale air when we breath through our nostrils. Fine hair and mucus present in side the nose to prevent the dust particles from getting into the respiratory system
Explanation:
The best way to check if you are breathing dust particles is to rinse your nose in the evening and see if some dark thick substance is coming out
I know its little weird but it is the simplest way to find that
Answer:
Aim: To show the presence of dust particles in the air
Method: Close the doors and windows of a room,preferably a sun-facing room during daytime.Now open a door,window or ventilator slightly such that a stream or a narrow beam of sunlight enters the room.We can see tiny particles moving randomly in that beam of light.This proves the presence of dust particles in the air.