Water vapor
evolutionary forces is most likely to decrease variation between populations
The sun heats the surface of the Earth throughout the day, which in turn heats the lowest part of the atmosphere. The surface starts too cool down around sunset. As a result the lower atmosphere is generally warmest and thus the most unstable in the late afternoon. An unstable atmosphere is necessary for the formation of the strong thunderstorms that produce tornadoes.
Plants gives us most of our oxygen in the atmosphere.
The most variable abundance in the atmosphere is Water Vapour and Ozone
Yes, trees do provide most of our oxygen for the atmosphere
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Upper Part
the Tropics
Nitrogen
Most human activities take place in the layer of the atmosphere known as the troposphere. This is the lowest part of the atmosphere of the earth.
Water vapor, which is technically a gas. It varies tremendously from one place to the next, and from one season to the next. It varies most from warm areas to cold areas, since the air's ability to hold it varies exponentially with temperature.
Life occurs in the troposphere. It is the lower most level of the atmosphere and is the region below 12 km.
Convectionheat moves by, radiation(:
Convectionheat moves by, radiation(:
Water Vapor and Carbon Dioxide
The Troposphere
The layer of the atmosphere that most weather takes place in, is the troposphere. This layer is the lowest layer of the atmosphere.