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.
AIR MASSES OVER ASIA The air masses commonly observed over Asia (especially eastern Asia) are continental polar, maritime tropical, and equatorial. Maritime polar and continental tropical air play a minor part in the air mass cycle of Asia. Continental Polar (cP) Air Continental polar air, as observed over the interior of Asia, is the coldest air on record in the Northern Hemisphere. This is brought about by the fact that the interior of Asia, made up of vast level and treeless regions, serves as an ideal source region.