The four letters used to describe air masses in weather maps are cP, cT, mP, and mT. "c" represents continental (dry) air, "m" represents maritime (moist) air, "P" represents polar air, and "T" represents tropical air.
The four letters used in this system are c, m, T, and P. "c" represents continental air mass (dry), "m" represents maritime air mass (moist), "T" represents tropical air mass (warm), and "P" represents polar air mass (cold).
Aristotle's four elements are earth, water, air, and fire. Aristotle believed that these elements made up all matter in varying degrees. Earth represents solidity, water represents fluidity, air represents gaseousness, and fire represents heat.
humidity
The arrow opposite the direction of travel is the air resistance or drag.
An air balloon or a feather can be used to represent air. The balloon is filled with air and floats, while the feather is light and gets easily carried by the air.
The tip of the wave.
usually it represents the the air presure
Oxygen represents about 21% of Earth's atmosphere.
The lung volume that represents the total volume of exchangeable air is the vital capacity. It is the maximum amount of air a person can exhale after taking the deepest possible inhalation.
vital capacity
a) the straight graph