The atmosphere is that thin gaseous envelope that surrounds our planet; it is not at all motionless in relation to the Earth; On the contrary, it is constantly animated by various movements.
These movements of the atmosphere have extremely variable characteristics:
- sometimes, it's a pleasant breeze that comes to refresh us, by a beautiful summer afternoon, when we are at the seaside;
- sometimes, it is violent winds which sweep a large part of France while wrapping around a vast zone of low pressures; from time to time these winds are so violent that they can uproot trees and make roofs fly away;
- and, sometimes, these movements of the atmosphere are in the form of fast ascents, with vertical speeds of the order of 10 m / s; these ancestries are localized, occurring on a small horizontal surface, of the order of a square kilometer, and they can give rise to a cloud of storm, the famous cumulonimbus.
Although this list is far from complete, it illustrates the great diversity of atmospheric movements.
so that's true