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Which situation shows the presense of oxygen in a material? I. Lighting of candle II. Burning of fuels III. Combusion of engines IV. Putting off a lighted candle A. I, II and III B. I and IV C. I and II
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Which situation shows the presense of oxygen in a material?

I. Lighting of candle
II. Burning of fuels
III. Combusion of engines
IV. Putting off a lighted candle

A. I, II and III
B. I and IV
C. I and II
D. All of the above

User Javona
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1 Answer

5 votes

Answer:

letter D.all of the above

User Mukesh Yadav
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