Era - a Chronology tsarin. Menene wannan zamanin?

Era - shi ne mai manyan lokaci lokaci, tarihi lokaci. Don haka ya kira tsarin na Chronology, kazalika farkon wannan zamanin. A tarihin duniya tamu za a iya raba lokaci. Tsakanin kansu, suke sãɓã wa jũna a cikin wasu yanayin da kasa canje-canje, kazalika da wani gagarumin nasara a ci gaba da dabbobi da shuka rayuwa. Mutane da yawa suna sha'awar, abin da suke da shekaru da kuma abin da suka wakilci. Babban matakai na raya kasa na duniya.

archean zamanin

A wannan lokaci, mu duniya da aka kafa, lokacin dade game da wani biliyan shekaru. Rayuwa a duniya bai kasance, a cikin teku, da sinadaran halayen tsakanin acid, alkalis, salts. Archean zamanin ya ba Yunƙurin zuwa mai gina jiki abu. A sa'an nan da fara fito fili rayayyun kwayoyin halitta.

proterozoic zamanin

Babbar tsawon lokaci na duniya, wanda dade game da biliyan 2 shekaru. A wannan lokaci, ci gaba algae da kwayoyin cuta, kwayoyin saya jikunansu, sun zama kwayar. Era - wani lokaci tsawon lokacin da akwai wani sabon abu, Proterozoic mataki rarrabe nau'i na adibas na tama. Wannan lokaci ne halin da cewa duk rayuwa matakai dauki wuri a cikin teku.

Palaeozoic

Wannan ne lokaci bambanci na dindindin canji a yanayin damina, shi ne zuwa kashi 6, saukarwa. A wannan lokaci, masu tasowa, Flora da fauna, akwai mutane da yawa jinsunan kifaye. Tare da bankunan girma conifers, ferns. Around tsakiyar zamanin kasance na farko da halittar dabba mai kafafuwa kamar dabbobi masu rarrafe, beetles, fara ne kawai. A lokacin ne halin da m upheavals, canza siffofi na nahiyoyi.

A Mesozoic zamanin

Phase kunshi Triassic, Jurassic da kuma Cretaceous lokaci. A Mesozoic zamanin - shi ne fitowan da ƙasa da tẽku, kunkuru, frogs, jatan lande, sabon nau'in na murjãni. Aka mamaye dabbobi masu rarrafe da tsuntsaye dinosaur. A tsakiyar shekaru akwai na farko da wakilan na zamani da tsuntsaye da kwari. A Cretaceous lokaci ya nau'i nau'i na pterosaurs da dinosaur.

A wannan lokaci, da inganta yanayin damina, tare da sakamakon cewa ƙasar da aka rufe greenery. A ƙasar akwai na farko jinsunan cypress da kuma Pine itatuwa, da kuma flowering shuke-shuke. A Mesozoic zamanin an fara yin hadin gwiwa kwari da Flora. A wannan lokacin, da nahiyoyi dauka a kan sabon siffofin da girma, da tsibiran suna kafa a sakamakon tsaga. Atlantic Ocean na karuwa a size, ambaliya manyan yankuna na ƙasar.

Cainozoic zamanin

"Shekaruna nawa ne na karshe lokaci a cikin abin da bil'adama rayuwarsu?" - sau da yawa a tsare wannan tambaya mutane. A Cenozoic zamanin (shi yana zuwa wannan rana) ta fara game da 66 da miliyan da suka wuce. Yana bambanta da zuwan zamani tsuntsaye, dabbobi masu shayarwa, angiosperms kuma, ba shakka, mutane. By tsakiyar na zamanin da ya kafa kusan duk babban kungiyoyin na mulkokin yanayi. A wannan lokaci akwai matakan da fadamun, sabon iri ciyawa, shrubs. Har ila yau a cikin yanayi kafa main iri agrocenoses da biogeocenosis. Man fara daidaita da yanayi, yin amfani da yanayin saduwa sirri bukatun. Shi ne mutane wanda daga baya ya canja da kwayoyin duniya. A Cenozoic Era ne zuwa kashi uku lokaci: Paleogene, Neogene da Quaternary. Yana ci gaba a yau.

Dauke da wani zamanin rabu da yanayin da kasa halaye. Amma akwai sauran tsarin na Chronology. Alal misali, ya ce "mu zamanin", da yawa unsa a mataki wanda fãra daga Kirsimeti. Har ila yau, mutane saita kashe masana'antu, technotronic da sauran lokuta da cewa wani abu da daraja, sun canja hanyar mutane tunani game da duniya, canja tunanin zuwa rayayyun kwayoyin halitta.