Nerium oleander /ËnÉªÉriÉm ËoÊliË.Ã¦ndÉr/[3] is a shrub or small tree in the dogbane family Apocynaceae, toxic in all its parts. It is the only species currently classified in the genus Nerium.
Troposphere. The troposphere (from Greek: tropein-to change, circulate or mix) is the lowermost layer of the Earth's atmosphere. Most of the weather phenomena, systems, convection, turbulence and clouds occur in this layer, although some may extend into the lower portion of the stratosphere.emperature and water vapor content in the troposphere decrease rapidly with altitude and thus most of the water vapour in the troposphere is concentrated in the lower, warmer zone. Water vapor concentrations vary with latitude.
The troposphere is the most interesting layer of the atmosphere. It is below the stratosphere. Weather happens in the troposphere. That is because the troposphere is the only layer that has enough water vapor to have clouds, which drop rain and snow.Some planes fly near the top of the troposphere.The troposphere is the most chaotic layer of the atmosphere; it is also the only one that can support life.eather happens in the troposphere. That is because the troposphere is the only layer that has enough water vapor to have clouds, which drop rain and snow. Some planes fly near the top of the troposphere. The troposphere is the most chaotic layer of the atmosphere; it is also the only one that can support life.