vacuum
it is called a air ball
It is when the "correct" air to fuel ratio is used to completely burn the fuel in question in an internal combustion engine. If exactly the correct amount of air is used this is called the stoichiometric mix.
vacuum
The type of front that is completely lifted off the ground by cold air is called an "occluded front." This occurs when a cold front overtakes a warm front, forcing the warm air to rise above the cold air masses. As a result, the warm air is lifted off the surface, leading to the development of cloud formations and precipitation. Occluded fronts are typically associated with complex weather patterns and can result in varied weather conditions.
air
When the moon appears completely dark it is called a new moon.
Yes, isopropyl alcohol evaporates completely when exposed to air.
A vacuum is completely empty of air and all other matter. It is a space devoid of any particles or gases.
It will be rock hard.
An area of land completely surrounded by water is called an island.
Being completely underwater is referred to as being submerged.
It is called being submerged.