- Driving force outside momentous stadium - Driving power or strength - Force of a moving mass - Impetus - The quantity of motion in a moving body, being always
proportioned to the quantity of matter multiplied into the velocity;
impetus. - Essential element, or constituent element.
- Chemical element - Constituent of air - Gas that makes up 78 per cent of the Earth's atmosphere - Gas that makes up 78 per cent of the Earths atmosphere - Gas, N - Gaseous element - Get Ron in to fix the gas