how you can prove that oxygen present in air
Answers
Answered by
3
by using air purifier or growing more trees
maitypapiya198pbrdrv:
thnx for answer the question.
Answered by
1
When we strike a matchstick against the rough surface of a matchbox it starts burning . This would not have been possible if there ewas no oxygen ( supporter of combustion ) present in the air . So , it is proved that air has oxygen .
hope this helps you and please mark as brainliest
hope this helps you and please mark as brainliest
Similar questions