PRESSURE and TEMPERATURE are related. Pressure and temperature both fluctuate.
Pressure drop as we ascend the HILL
Water Vapour content.
PRESSURE is a contraction of PRESS. The AIR above our EARTH'S surface PRESSES UP on it.
Gravity is greatest at sea level and diminishes upward. As we climb the slope, the atmospheric pressure lowers.
Pressure drop reduces TEMPERATURE. Because increasing pressure means more particles or molecules in the space