Video: Cov yam ntxwv ntawm dej ua rau nws yog ib qho tseem ceeb hauv ntiaj teb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dej . Dej yog qhov tseem ceeb rau lub neej vim muaj plaub cov khoom tseem ceeb : cohesion thiab adhesion, cov dej kub tshwj xeeb, cov dej muaj peev xwm nthuav dav thaum khov, thiab nws muaj peev xwm yaj ntau yam ntawm tshuaj.
Hauv qhov no, 5 yam dej num tseem ceeb rau lub neej yog dab tsi?
Cov khoom tseem ceeb ntawm cov dej yog nws cov polarity, cohesion, adhesion, nto nro, siab tshwj xeeb kub , thiab evaporative txias.
Kuj Paub, vim li cas dej thiaj tseem ceeb rau lub ntiaj teb? Flowing life Nyob rau hauv no hais txog, dej yog qhov tseem ceeb tsuas yog vim nws yog kua ntawm Lub ntiaj teb -zoo li kub. Vim nws ntws, dej muab txoj hauv kev zoo rau kev hloov cov tshuaj los ntawm ib lub xovtooj mus rau lub xovtooj ntawm ib puag ncig.
Yog li ntawd, dab tsi yog qhov tshwj xeeb ntawm cov dej thiab vim li cas lawv tseem ceeb?
Nws yog plaub tus yuam sij khoom - thermal khoom , muaj peev xwm ua raws li cov kuab tshuaj universal, cohesion thiab adhesion - pab txhawb lub neej txheej txheem thiab chaw nyob ntawm txhua yam kab mob. Dej yog ib tug polar molecule, txhais tau tias nws cov nqi yog unevenly faib nrog ib tug delta tsis zoo oxygen thiab 2 delta zoo hydrogens.
Dab tsi ua rau dej tshwj xeeb?
Dej muaj ntau yam txawv txawv vim nws cov polar covalent bonds. Oxygen muaj lub electronegativity loj dua li hydrogen, yog li cov electron khub tau rub los ze zog rau oxygen atom, muab nws ib nrab nqi tsis zoo. Tom qab ntawd, ob qho tib si ntawm hydrogen atoms coj mus rau ib nrab nqi zoo.
Pom zoo:
Yam dab tsi ua rau cov yam ntxwv ntawm lub ntiaj teb muab piv txwv?
Biotic thiab abiotic factor Biotic yam muaj xws li tsiaj txhu, nroj tsuag, fungi, kab mob, thiab protists. Qee qhov piv txwv ntawm abiotic yam yog dej, av, huab cua, hnub ci, kub, thiab cov zaub mov
Cov kws kos duab hu li cas cov duab thiab cov duab siv los sawv cev rau cov yam ntxwv ntawm lub ntiaj teb nto?
Ntiaj Teb Kev Tshawb Fawb - Daim Ntawv Qhia Lub Ntiaj Teb Qhov Nto A B GLOBE Ib puag ncig uas sawv cev rau lub ntiaj teb nto. SCALE Siv los sib piv qhov deb ntawm daim ntawv qhia lossis lub ntiaj teb mus deb ntawm lub ntiaj teb nto. SYMBOLS Ntawm daim duab qhia chaw, cov duab siv los ntawm mapmakers sawv ntsug rau cov yam ntxwv ntawm lub ntiaj teb nto. TSEEM CEEB Ib daim ntawv teev cov cim siv rau ntawm daim ntawv qhia
Yuav ua li cas yog vim li cas tus qauv ntawm ib qho enzyme tseem ceeb heev rau nws txoj haujlwm hauv cov khoom muaj sia?
Enzymes ua kom cov tshuaj tiv thaiv uas tshwm sim hauv cov hlwb. Qhov kev ua haujlwm no cuam tshuam ncaj qha rau lawv cov qauv, nrog rau txhua qhov enzyme tau tshwj xeeb zoo li tus ua kom muaj zog rau ib qho tshuaj tiv thaiv. Kev poob ntawm cov qauv ua rau poob haujlwm. - Kub, pH, thiab kev tswj cov molecules tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov enzymes
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
Ntau npaum li cas ntawm cov pej xeem hauv ntiaj teb nyob ntawm cov kab ke roob rau tag nrho lossis qee qhov ntawm lawv cov dej?
Roob yog lub ntiaj teb "dej yees," muab 60-80% ntawm tag nrho cov dej tshiab rau peb ntiaj chaw. Tsawg kawg ib nrab ntawm lub ntiaj teb cov pej xeem nyob ntawm roob ecosystem kev pabcuam kom muaj sia nyob - tsis yog dej xwb, tab sis kuj muaj zaub mov thiab lub zog huv