Video: Dab tsi yog 3 qhov chaw tseem ceeb uas cov dej ntws los ntawm Tebchaws Meskas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Peb tus dej ntawd dej lub feem ntau dej , los ntawm feem ntau mus rau tsawg kawg, yog tus Amazon, Ganga, thiab Congo Rivers.
Ib yam li ntawd, peb lub pas dej loj hauv Asmeskas yog dab tsi?
Muaj rau feem ntau lees paub hydrological continental faib uas faib lub teb chaws mus rau xya tus thawj coj dej bass spanning peb Dej hiav txwv (Arctic, Atlantic thiab Pacific) thiab ib lub phiab endorheic. Cov phiab yog Atlantic Seaboard phiab, Gulf of Mexico phiab, Great Lakes-St.
Tsis tas li ntawd, qhov twg yog cov dej loj tshaj plaws nyob hauv Asmeskas? Lub Mississippi River thiab nws ntau tshaj 250 tributaries yog hu ua Mississippi River System. Lub teb chaws uas nws ntws tawm yog Mississippi River watershed.
Ntawm no, peb cov dej hiav txwv dab tsi ua rau cov cheeb tsam no ntws mus rau?
Lub pas dej
| Lub phiab | Hom | Drains rau |
|---|---|---|
| North Hiav Txwv | Mediterranean hiav txwv | Dej hiav txwv Atlantic |
| Yukon River | Thawj tus dej | Bering Hiav txwv |
| Yellow River | Thawj tus dej | Dej hiav txwv Pacific |
| Mekong River | Thawj tus dej | Dej hiav txwv Pacific |
Dab tsi yog qhov dej ntws loj tshaj plaws hauv North America?
Cov dej ntws ntawm North America Ob qhov dej ntws tseem ceeb-lub Great Lakes-St Lawrence system thiab lub Mississippi -Missouri system-dominate lub hydrography ntawm sab hnub tuaj thiab Central North America.
Pom zoo:
Dab tsi yog qhov kev hloov pauv ntawm cov khoom uas txav ntawm qhov chaw mus rau qhov chaw ntawm - 12 m?
Kev piav qhia: Qhov kev txav ntawm ib qho khoom txav ntawm qhov chaw mus rau qhov chaw ntawm − 12 m yog 12 meters. Qhov kev ncua deb ntawm lub hauv paus chiv keeb mus rau qhov siab tshaj plaws txoj hauj lwm yog hu ua displacement ntawm ib yam khoom. Qhov siab tshaj plaws kev hloov pauv ntawm cov khoom nyob rau hauv ib nthwv dej yog hu ua crest thiab qhov tsawg kawg nkaus hloov pauv yog hu ua trough
Vim li cas thiaj tseem ceeb heev rau cov neeg nyob hauv thaj chaw los kawm txog cov pejxeem ntawm ib lub tebchaws?
Vim cov pej xeem muaj kev cuam tshuam loj heev rau peb lub neej, nws yog ib feem tseem ceeb ntawm thaj chaw.Geographers uas kawm tib neeg cov pej xeem tshwj xeeb tshaj yog nyiam cov qauv uas tshwm sim dhau sijhawm. Lawv kawm cov ntaub ntawv xws li muaj pes tsawg tus neeg nyob hauv ib cheeb tsam, yog vim li cas tib neeg nyob qhov twg lawv ua, thiab cov pej xeem hloov pauv li cas
Dab tsi yog qhov txawv ntawm cov khoom tseem ceeb thiab cov kab hauv cov dej hiav txwv?
Ib cag ntawm 12 lub ntsiab lus uas yog cov ntsiab lus tseem ceeb lossis cov ntsiab lus me thiab qee cov ntsiab lus uas yog cov roj yaj, tag nrho lwm cov ntsiab lus yaj hauv dej hiav txwv muaj nyob rau hauv cov ntsiab lus tsawg dua 1 ppm thiab hu ua cov kab hauv qab. Ntau cov kab ke tseem ceeb rau lub neej
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Dab tsi yog qhov pov thawj tseem ceeb uas Hawaii Islands tau tsim los ntawm qhov chaw kub?
Yog li ntawd, cov kws tshawb fawb ntseeg tias cov Islands tuaj tsim vim muaj Hawaii 'kub qhov chaw', ib cheeb tsam sib sib zog nqus hauv lub ntiaj teb lub mantle los ntawm qhov kub nce. Cov cua sov no ua rau cov pob zeb yaj (magma), uas tom qab ntawd thawb los ntawm cov crust thiab solidifies