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| Q. |
Combustion is defined as |
| A. | chemical combination of hydrogen and carbon in the fuel and oxygen in the air |
| B. | chemical combination of hydrogen and carbon in the fuel and nitrogen in the air |
| C. | chemical combination of hydrogen and carbon in the fuel and both oxygen and nitrogen in the air. |
| D. | all the above. |
| Answer» A. chemical combination of hydrogen and carbon in the fuel and oxygen in the air | |
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