answer the following
1. give a simple experiment to prove that air is essential for burning
2. give four uses of air
3. give four uses of oxygen
4. why do traffic constables wear face masks

                  please answer i will surely give you like

Dear Student.
Please find below the solution to the asked query.

Four uses of air:
https://www.meritnation.com/ask-answer/question/what-are-uses-of-air/air/5770772

Please refer to the following link

www.meritnation.com/discuss/question/1886249/1/what-are-the-uses-of-oxygen 

Please ask questions in separate threads.

Hope this information will clear your doubts about the topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards.

  • -1
WE CAN SHOW BY FOLLOWING ACTIVITY THAT AIR SUPPORT BURNING.
TAKE A SMALL BURNING CANDLE AND COVER IT WITH A GLASS OR JAR AFTER FEW MINUTES CANDLE STOP BURNING BECAUSE SUPPLY OF WATER IS STOPPED.
FOUR USES OF AIR ARE :
1.IT CAN BE USED FOR BURNING
2.IT CAN BE USED FOR RESPIRATION
3.FOR PHOTOSYNTHESIS.
4.TO FLY KITE.
TRAFFIC CONSTABLE WEAR FACE MASKS BECAUSE  THEY PROTECT THEMSELVES FROM POLLUTION.THE UP GOVERNMENT ,S ATTEMPT TO PROTECT TRAFFIC CONSTABLES FROM POLLUTION BY ORDERING THEM TO WEAR POLLUTION MASKS HAS PROVED TO BE A DAMP SQUIB IN THE CITY.
 
  • 0
What are you looking for?