On average, the total weight of the atmospheric mass exerts a pressure at sea level of around 1.0 × 10 5 pascals (Pa; or one atmosphere), which is equivalent to 1.0 kg per cm 2 . The density of the at...On average, the total weight of the atmospheric mass exerts a pressure at sea level of around 1.0 × 10 5 pascals (Pa; or one atmosphere), which is equivalent to 1.0 kg per cm 2 . The density of the atmospheric mass is much greater close to the surface and decreases rapidly with increasing altitude.
The atmosphere, the gaseous layer that surrounds the earth, formed over four billion years ago and is held in place by the attractive forces of gravity. This section is a brief introduction to the lay...The atmosphere, the gaseous layer that surrounds the earth, formed over four billion years ago and is held in place by the attractive forces of gravity. This section is a brief introduction to the layers of the atmosphere and the differences between climate and weather.
