Loj heev qhov chaw ntawm lub North American sab av loj ntau yam ntawm muaj. Txhua toj roob hauv pes tsam muaj ib qhov nqi ntawm cov tsis tshua muaj, cim thiab tej yam qub qab nroj tsuag loj hlob nyob rau hauv nws daim av.
Subtropical deserts thiab semi-deserts ntawm sab qab teb sai sai overgrown nrog pos fab, cacti qhov txhia chaw sib txawv yug menyuam, txhoj puab heev thiab muaj menyuam coob coob pos pear, slim Idrija, xeeb 10 meters nyob rau hauv qhov siab, txawj interspersed nrog stunted, tab sis incredibly tenacious ntoo coryphantha. Tag nrho cov ntawm cov nroj tsuag - qhov ntawm America, piv txwv ntawm ntev-lub sij hawm evolution.
Mus rau sab qaum teb hauv cov suab puam pib ib tug ntau temperate kev nyab xeeb, cacti maj mam muab txoj kev uas yuav lub bushes ntawm wormwood, quinoa thiab Eurotia. Cov tsiaj qus America yog txawv nyob rau hauv nws cov splendor. TEB CHAWS USA cheeb tsam ntawm lub pob zeb loj Appalachian nyob rau hauv lub sab hnub tuaj mus rau sab hnub poob mob rocky Cordilleras, yog ib tug series ntawm nram hav thiab flowering muaj menyuam tsis taus plateaus richest pasture Prairies thiab kev txom stony nras. Tag nrho cov xwm ntawm America yog raws li nyob rau hauv kev sib piv no. Yog li ntawd, feem ntau fertile thiab picturesque yog hom twg teem tseg rau lub teb chaws tiaj ua si. Chief US cia, Yellowstone Chaw ua si, kis tau tshaj ib tug loj cheeb tsam ntawm yuav luag ib lab hectares.
Lub tiaj ua si yog tsim ib puas thiab tsib caug xyoo dhau los, nyob rau hauv cov kev phem ntawm nws lub npe - "zeb daj", yog ib tug ntawm cov greenest qhov chaw nyob rau hauv ntiaj chaw. Yellowstone Chaw ua si yog nto moo rau tus kub springs, Geysers thiab tam sim no, tab sis nws yog hushed roob hluav taws.
Mus rau sab hnub tuaj, nyob rau hauv Florida, nws yog lwm lub teb chaws tiaj ua si, Everglades. Lub tiaj ua si yog ib lub tsev rau tsawg nroj tsuag, ntoo thiab paj, tsuas yog hais txog 2,000 cov khoom. Lub tiaj ua si yog qhov chaw nyob qhov twg loj hlob tag nrho cov hom ntawm cov tsiaj qus orchids. Rau ib ntev lub sij hawm ib ncig ntawm lub Everglades park sim txhawb nqa, xav qhuav marshy av, tab sis nyob rau hauv lub kawg, UNESCO lub kev txiav txim siab, nws twb tshaj tawm hais tias ib tug tsiaj qus cheeb tsam thiab yuav nyob ib leeg.
Lwm US National chaw ua si - Tuag Valley - muaj tsis muaj yuav tsum tau ntws, vim nws yog nyob rau hauv lub arid qhov chaw ntawm North America, sab hnub tuaj ntawm lub roob Sierra Nevada nyob rau hauv California, qhov twg lub concentrated xwm ntawm lub America lub nyob rau hauv lawv qhov zoo tshaj plaws cov ntaub ntawv. Nws grim Park twb muaj npe thaum lub sij hawm kub maj nyob rau hauv nws lub teb chaws thaum cov kev tshawb fawb rau cov kub leeg tau cim los ntawm ob peb cov neeg tuag. Nyob rau hauv Tuag Valley loj hlob giant sequoias, cov ntoo tsis nyob qhov twg nyob rau hauv lub ntiaj teb no. Lub qhov siab ntawm cov neeg loj thiab siab - txog ib puas meters thiab ib lub cev txoj kab uas hla ntawm mus txog kaum meters. Ib tsob ntoo yog pom tias yuav tau cov cuab yeej ntawm tus American haiv neeg thiab yog inviolable.
Lub fauna nyob rau hauv North America tsis muaj tsawg muaj ntau haiv neeg tshaj qhov muaj. Qhov ntau ntawm cov tsiaj qus vim ob peb climatic ib ncig chaw. Nyob rau hauv txias tundra forests yog inhabited los ntawm Caribou, polar bears, qus musk nyuj, ncov qaumteb qabteb hma, hma. Nyob rau hauv lub taiga tsam kev nyab xeeb yam, thiab yog li ntawd qhov xwm ntawm America lwm, txawv los ntawm lub sab qaum teb cheeb tsam. Nyob rau hauv lub hav zoov nyob rau hauv lub American cov nyuj qus, thiab nyob rau hauv ib tug ntau yam ntawm pluab-kev coj tus kheej cov tsiaj, marten, sable, mink thiab weasel. Loj cov tsiaj uas muaj los ntawm xim av bears thiab wolverines.
Nyob rau hauv lub hav ntawm lub Mississippi River , koj yuav nrhiav tau cov cim alligators thiab tsis muaj tsawg cim Mississippi vaub. Lossis loj tsiaj ntawm flamingos nyob rau hauv cov dej, ibises thiab pelicans. Nyob rau hauv lub ntsuab splendor ntawm lub Great dej phiab tau pom lub tsev thiab pub lab ntawm me me noog ziag. Missouri Hav dej, Mississippi tributary, yog tseem nplua nuj nyob rau hauv fauna.
US Xwm abhors ib lub tshuab nqus tsev. Ib txhia hom ntawm cov tsiaj thiab cov noog ntawm North America disappearing, tab sis nyob rau hauv kev tej teeb meem no yog conducive mus rau lub continuation ntawm lub neej predatory thiab herbivorous tsiaj, noog, cov tsiaj reptiles thiab kab. Ntawm qhov chaw ntawm lub hom endangered muaj cov tshiab coob.