| A | B |
|---|
| weather | condition of bottom layer of earth's atmos. in 1 place ov. short per. of time. |
| atmosphere | multilayered band of gases,water vapor, and dust above earth. |
| climate | term used for weather patterns an area typ. experiences over lng. per. of time. |
| rotation | spinning motion of the earth as it travels through space |
| revolution | one comp. orbit around the sun |
| soltices | either of the two times of year when the sun app. directly overhead to observers at tr. of canc. and capri. |
| equinox | either two times each yr. when day and night are nearly of equ. length everywh. on earth |
| fronts | air masses of dif. temp. meet |
| continental climates | type of cl. found in great central areas of cont. in north. hemisphere |
| plant community | mix of interdep. plants that naturally grow in one place. |
| environment | phys. conditions of natural surroundings |
| natural vegetation | typical plant life that abounds in areas where humans haven't significantly altered landsc. |
| deciduous | leaf shedding when winter approaches |
| coniferous | cone bearing,type of tree able to survive long cold winters, long, thin needles rather than leaves |
| chapparral | sm. evergreen trees and low bushes or scrub |
| savannah | trop. grassland with scattered trees located in the warm lands nearest equator |
| tundra | temp. are always cool or cold, only spec. plants can grow |
| permafrost | layer of soil just below earth's surface that stays frozen permanently |
