Fossilization yog txheej txheem ntawm tsiaj lossis tsob nroj tau khaws cia rau hauv daim ntawv tawv, petrified … Keeb kwm, pob txha pob txha txhais tau tias yog "txhua yam uas tau khawb," los ntawm Latin fossilis, "dug up." Los ntawm lub xyoo pua 18th, ob qho tib si pob txha thiab pob txha pob txha tshwj xeeb yog hu ua "geological seem ntawm cov nroj tsuag lossis tsiaj. "
Dab tsi ntawm kev hais lus yog lo lus fossilization?
verb (siv nrog khoom), fos·sil·ized, fos·sil·iz·ing.
piv txwv ntawm fossilization yog dab tsi?
Ib "pob txha" yog ib yam uas tau muaj sia nyob, tab sis tam sim no tau hloov mus ua pob zeb. Dinosaur pob txha yog pob txha, piv txwv. Tus txheej txheem ntawm tig los ntawm ib tug muaj sia mus rau hauv lub pob zeb yog hu ua "fossilization ".
Puas yog fossilization ntau lossis tsawg?
Fossilization is rare. Feem ntau cov kab mob decompose sai sai tom qab lawv tuag. Rau cov kab mob mus rau fossilized, cov seem feem ntau yuav tsum tau npog los ntawm cov av sai sai tom qab tuag. Sediment muaj xws li cov xuab zeb hiav txwv, lava, thiab txawm nplaum nplaum.
Vim li cas fossilization yog txheej txheem tsawg?
Kev piav qhia: Txawm li cas los xij yog fossilized yuav tsum xub tsis txhob noj lossis rhuav tshem. … Fossils tsis tshua muaj vim feem ntau cov seem tau noj lossis rhuav tshem sai tom qab tuag. Txawm hais tias cov pob txha raug faus, lawv yuav tsum nyob twj ywm faus thiab hloov nrog cov ntxhia.
