Astronamy
The distance from the apex to the base of a pyramid is known as the altitude.
This characteristic is called altitude or elevation.
altitude
The steady decrease in temperature with altitude in the troposphere is called the environmental lapse rate. This is due to the decreasing pressure and density of the air as altitude increases.
Altitude
The measure of height above the Earth's surface is called altitude. This can refer to altitudes in aviation, geography, or astronomy, depending on the context.
The low-altitude billowy cloud is called cumulus cloud.
Hypoxia
altitude sickness
It is called altitude. It is typically expressed as ASL (above mean sea level, or MSL). However, it can also be specified as AGL (Above the local Ground Level).
The altitude is usually drawn from the base.
The word you are looking for is "altitude." Altitude refers to the height or elevation above sea level.