What prevents the layers of the atmosphere from mixing together?

Question

please give a website adress as to where you found this information, if u don't i can't use your answer.

Answer 1

The atmosphere does mix. Water does stay in the lower elevation, however. Way up hydrogen and helium are the primary gases but are stripped off by the forces of the sun and earth's travel. Today here is what we know:  many of mankind’s advancements cause earth surface to warm, destroy the ozone layer, kill off endanger species, heat cities, and in some way cause more destruction.  Blacktop (roads and parking lots), buildings, air pollution (causes lung and other diseases), deforestation, duststorms (which increase hurricanes and cyclones and cause lung diseases), fires (cause pollution, mud slides, and deforestation), refrigerants (like CFC's), solvents (including benzene destroy the ozone layer raising skin cancer rates) and plastics; cars, airplanes, ships and most electricity production (causes pollution including raised CO2 levels) are human problems we need to fix to keep life on earth sustainable! The federal government needs to adopt a pollution surcharge to balance the field and advance new technologies. We must pay the real price of oil (petrochemicals) including global warming, cleanup and for health effects. But with that we must understand we have never seen what is now happening before. CO2 has never lead to temperature change, but temperature change has led to increases in CO2. The models have to be made as we go along with little evidence! The result is:  change is on the way, we just do not know what changes. But again adding a small amount of CO2 to the atmosphere enlarges the earths sun collection causing warming; increase water in the atmosphere and they form clouds cooling earth but causing flooding. Even natural events are warming earth and causing destruction. The sun has an increased magnetic field causing increases in earthquakes (more destruction), volcanoes (wow, great destruction), and sun spots. Lighting produces ozone near the surface (raising air pollution levels). But humans have destroyed half of the wetlands, cut down nearly half of the rain forest, and advance on the earths grasslands while advancing desertification which increases duststorms. The USA Mayor's have taken a stand and I believe are on the right track, we can have control and can have economic growth. With the peak of oil in the 1970’s, the peak of ocean fishing in the 1980’s, humans must stop procrastinating and make real changes to keep earth sustainable including in the energy debate, finance and regulation. The sun is available to produce energy, bring light to buildings and makes most of human’s fresh water. Composting is the answer to desertification. New dams are the answer to fresh water storage, energy and cooling earth by evaporation, we need many small one all over (California needs 100 by 2012 and has not even started).

President Bush has made a choice of energy (ethanol) over food and feeding the starving people around the world; this is a choice China has rejected.

Answer 2

To oversimplify the answer, the atmosphere has a stable layer, a mixed layer and the free atmosphere.  Meteorologists talk about the boundary layer.  For more info:

http://lidar.ssec.wisc.edu/papers/akp_th...

Answer 3

Turbulence from wind causes even heaviest of gases in the atmosphere to mix quite well. We’d all be in trouble if atmospheric gases were sorted by weight.