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1. |
What was the mixture of gases used in chamber marked A ? |
A. | Methane (CH4), ammonia (NH3), hydrogen (H2), and water (H2O) |
B. | Oxygen (O2), ammonia (NH3), hydrogen (H2), and water (H2O) |
C. | Oxygen (O2), ozone (O3), hydrogen (H2), and water (H2O) |
D. | all above |
Answer» B. | |