| A | B |
| weather | condition of the atmosphere at a particular location |
| climate | weather conditions at a particular location over a long period of time |
| rain shadow | land on the leeward side of mountains where very little precipitation falls |
| typhoon | storms that form over warm tropical ocean waters of the Pacific Ocean close to Asia |
| drought | a long period of time without rain or with minimal rainfall |
| convection | the transfer of heat in the atmosphere by upward motion of the air |
| El Nino | the warming of oceans of the west coast of South America |
| greenhouse effect | the layer of gases released by burnibg of coal and petroleum traps some solar energy causing higher temperatures on Earth |
| tundra | flat treeless land forming a ring around the Arctic Ocean |
| permafrost | constantly frozen subsoil |
| savanna | flat, grassy,mostly treeless plains found in tropical grassland region |
| steppe | temperategrassland in the Northern Hemisphere |
| deciduous | broadleaf trees like oaks and maples that loose their leaves in the winter |
| coniferous trees | needle leaf trees like pines |
| rainforest | forest located in the tropical zone, covered with a heavy concentration of broadleaf trees |