Dangane da dalilan da suka haifar da bacewar Dinosaur, har yanzu ana ci gaba da nazarinsa. Na dogon lokaci, ra'ayi mafi iko, da kuma ƙarewar dinosaur shekaru 6500 da suka wuce game da babban meteorite. Bisa ga binciken, akwai wani asteroid a diamita na kilomita 7-10 zai fado a saman duniya, wanda ya haifar da wani babban fashewa, kamar jefa ƙura mai yawa a cikin sararin samaniya don samar da gidan yashi da Fog na Zhetianbiri, ya haifar da dakatar da photosynthesis na tsire-tsire , don haka bacewar dinosaur. Ka'idar tasirin tauraron dan adam ta sami goyon bayan masana kimiyya da yawa cikin sauri. A cikin 1991, a cikin Yucatan Peninsula na Mexico ya faru a cikin gano dogon lokaci na tasirin tasirin meteorite, gaskiyar ita ce ƙarin shaidar wannan ra'ayi. A yau, wannan ra'ayi kamar ya zama ƙarshe.
Amma akwai kuma mutane da yawa don irin wannan tasirin asteroid a kan masu shakka, saboda gaskiyar ita ce: kwadi, crocodiles da wasu da yawa masu kula da zafin jiki na dabbobi sun yi tsayayya da tsira daga Cretaceous. Wannan ka'idar ba zai iya bayyana dalilin da yasa kawai dinosaur suka mutu ba. Har zuwa yau, masana kimiyya sun gabatar da dalilin da ya sa dinosaur ya kasance ba kasa da dozin al'amura ba, mafi yawan dukiya ga ban mamaki da ban sha'awa, "in ji karo na meteorite," amma yana daya daga cikinsu. Baya ga " karo na meteorite ", bacewar dinosaur a kan babban ra'ayi akwai, canjin yanayi: First. Shekaru miliyan 6500 da suka wuce, yanayin duniya ba zato ba tsammani ya canza yanayin yanayin zafi, wanda ya haifar da raguwar iskar oxygen a cikin yanayi ta yadda dinosaur ba za su iya rayuwa ba. An kuma nuna cewa dinosaur suna da jini mai sanyi, amma ba tare da gashi ko gabobin dumi ba kuma ba za su iya daidaita yanayin zafin duniya ba, sun kasance daskarewa don mutuwa.
Na biyu, nau'in, ya ce yakin. Ƙarshen zamanin Dinosaur, ya fara bayyana a cikin ƙananan dabbobi masu shayarwa, waɗannan dabbobin dabbobin dabbar beraye na iya ciyar da ƙwai.
Na uku, drift na nahiyar, in ji. Binciken Geology ya nuna cewa rayuwar dinosaur a lokacin da duniya ke da wani yanki na babban yankin kawai, wato, "Pangea." Saboda canje-canje a cikin ɓawon ƙasa, nahiyar ta faru a cikin Jurassic na babban rabo da drift, wanda ya haifar da yanayi da sauyin yanayi, sabili da haka bacewar dinosaur.
Na hudu, canje-canje a cikin geomagnetic ya ce. Ilimin halitta na zamani ya nuna cewa wasu filayen nazarin halittu da na maganadisu da ke da alaƙa da mutuwa.Mafi kulawa ga filin maganadisu na ilimin halitta, a cikin canjin yanayin maganadisu na duniya, na iya haifar da bacewa.Saboda haka da alama bacewar dinosaur na iya kasancewa yana da alaƙa da canje-canje a filin maganadisu na duniya. V. ya ce angiosperm guba. Ƙarshen zamanin dinosaur, duniyar gymnosperms a hankali bace, maye gurbin da babban adadin angiosperms, gymnosperms dauke da wadannan shuke-shuke ba a cikin mai guba siffar wata babbar dinosaur m abinci, ci na babban adadin angiosperms kai ga tara gubobi a cikin jiki da yawa, a karshe guba. Shida, ya ce acid ruwan sama. Marigayi lokacin Cretaceous na iya kasancewa ƙarƙashin ruwan sama mai ƙarfi na acid, ƙasa, gami da a cikin abubuwan gano strontium, za a narkar da dinosaur ta hanyar ruwan sha da abinci, kai tsaye ko a kaikaice, cin abinci na strontium, m ko guba na yau da kullun, ƙungiyoyin ƙarshe na matattu.
Dalilan bacewar Dinosaur a kan hasashen da na sama ya ambata fiye da waɗannan. Amma waɗannan hasashe da aka ambata a sama a cikin al'ummar kimiyya suna da ƙarin magoya baya. Tabbas, kowane ɗayan abubuwan da ke sama, akwai wuri mara kyau. Misali, “canjin yanayi” baya fayyace musabbabin sauyin yanayi. Bayan dubawa, wasu ƙananan dinosaur a cikin Coelurosauria, tare da isasshen wuri a kan kananan dabbobi masu shayarwa, don haka "nau'i-nau'i suna gwagwarmaya don faɗi" akwai madauki. A cikin ilimin geology na zamani, "ka'idar drift ta nahiyar" ita kanta har yanzu hasashe ce." Guba na Angiosperms" da "ruwan acid" iri ɗaya rashin isasshen shaida. Sakamakon haka, ainihin musabbabin bacewar Dinosaur, har yanzu ba a kara gano shi ba.
Kawah Dinosaur Official Website:www.kawahdinosaur.com