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## Main Question or Discussion Point

1. The temperature of air wil ......... if we add a hydrogen molecule of a speed higher than 1980 m s/-1.

2. The temperature of air will ........ if we take away a hydrogen molecule of a speed highr than 1980 m s /-1.

3. The temperature of air will ........ if we take away a hydrogen molecule of a speed lower than 1980 m s /-1.

4. The temperature of air will ........ if we add a hydrogen molecule of a speed lower than 1980 m s/-1.

2. The temperature of air will ........ if we take away a hydrogen molecule of a speed highr than 1980 m s /-1.

3. The temperature of air will ........ if we take away a hydrogen molecule of a speed lower than 1980 m s /-1.

4. The temperature of air will ........ if we add a hydrogen molecule of a speed lower than 1980 m s/-1.