Tsis yog - Cov Khoom Siv Rov Ntxiv Tshiab rau cov khoom siv hauv lub ntuj, cov pob zeb thiab cov roj av, roj, cov zaub mov hlau, cov khoom siv hlau, thiab lwm yam.

Tom qab tib neeg kev quab yuam thiab kev siv, tsis yog - cov khoom siv uas tsis muaj dua tshiab ntxiv rau ntawm lub ntiaj teb kev txhim kho hauv ntiaj teb, thiab qee yam kev hloov pauv sai lossis tsis yooj yim ntawm txhua yam khoom siv. [1]

Tib neeg txoj kev loj hlob thiab siv cov khoom tsis muaj - yuav muaj, tab sis nws tsis muaj peev xwm tswj hwm lawv cov khoom ntiag tug tseem ceeb lossis tsim dua tshiab.

Ntawm lawv, qee cov peev txheej tuaj yeem siv tau, xws li kub, tooj, thiab lwm yam khoom siv tsis tuaj yeem hloov dua tshiab, thiab cov khoom siv hlau, tsis tuaj yeem hloov pauv ntawm ib qho, thiab lwm yam khoom siv tsis tuaj yeem hloov dua tshiab, nws daim ntawv tau hloov pauv.

Cov peev txheej no tuaj yeem faib ua cov khoom siv tshiab dua thiab tsis muaj cov peev txheej txuas ntxiv raws li lawv lub sijhawm txuas ntxiv lossis tsis yog.

Nws tsuas yog hais txog txhua yam zaub mov, pob zeb thiab cov roj av, cov roj av, thiab cov roj ntsha tau qeeb, thiab cov roj ntsha tau qeeb los yog cov khoom siv hlau ntev dua los yog tsis tshua muaj piv rau lwm tus Cov peev txheej.Among lawv, qee cov peev txheej tuaj yeem siv tau, xws li kub, tooj, xws li cov roj av, roj, cov nkev roj, thiab lwm yam fossil roj. Thaum lawv raug siv los ua lub zog thiab hlawv, txawm hais tias lub zog tuaj yeem hloov los ntawm ib daim ntawv mus rau lwm daim ntawv mus rau lwm tus, nws daim ntawv qub lawm thiab nws daim foos tau hloov lawm.

Cov peev txheej twg hauv qhov tsis yog cov khoom tsis muaj - txuas ntxiv?

Cov khoom siv ntuj tsim tau hais txog cov xwm txheej tuaj yeem siv tau los ntawm cov khoom siv thiab hluav taws xob muaj peev xwm faib ua cov khoom siv ua kom muaj cov dej, cov av muaj kev sib xyaw ua ke, cov chaw muaj pa roj av, cov khoom siv tsiaj qus.

Cov roj cuab, roj, thee, hlau ore thiab lwm yam khoom siv tsis tau), tsis siv me ntsis ntxiv, peb yuav tsum xyuam xim ntxiv rau kev tiv thaiv thiab siv kev tiv thaiv.