A. Hydrogen
B. Air
C. Oxygen
D. Argon
Submitted by: Mirza Musawer Jamil
Combustion can not take place without air. Air contains about 21% by volume of oxygen. Oxygen is essential for combustion to occur.
A. Hydrogen
B. Air
C. Oxygen
D. Argon
Submitted by: Mirza Musawer Jamil
Combustion can not take place without air. Air contains about 21% by volume of oxygen. Oxygen is essential for combustion to occur.
EVERYDAY SCIENCE ONLINE QUIZ TEST |
---|
IF YOU THINK THAT ABOVE POSTED MCQ IS WRONG.
PLEASE COMMENT BELOW WITH CORRECT ANSWER AND ITS DETAIL EXPLANATION.