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19-10-2020
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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

Respuesta :

krishacae0210 krishacae0210

19-10-2020

Answer:

letter D.all of the above

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