4 Major part of the air is constituted by
(a) nitrogen
(b) orygen
(c) carbon dioxide
(d) inert gases
5. Which of the following gas helps in burning?
(a) Nitrogen
(b) Oxygen
(c) Carbon dioxide
(d) Carbon monoxide
6. Which one of the following will add to garbage?
(a) Wrapper of a biscuit pack (b) Tin of a cold drink © used Syringe (d) All of these
Answers
Answered by
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Major part of the air is constituted by
(a) nitrogen
Which of the following gas helps in burning?
(b) Oxygen
Which one of the following will add to garbage?
(d) All of these
Answered by
0
Answer:
Major part of the air is constituted by
(a) nitrogen
Which of the following gas helps in burning?
(b) Oxygen
Which one of the following will add to garbage?
(d) All of these
Explanation:
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