Jogirafi. On chii kondinendi havasi nzizi

Fans zhinji geography ndiwo mubvunzo sei, chii kondinendi havasi nzizi? With zvishoma kufunga, unogona yeuka kuti rwizi Zvechokwadi ikoko Africa, Asia, Europe, nzvimbo vokuAmerica uye kunyange Australia, kunyange zvikurukuru iri rinopisa dongo, pane nzizi vakanaka chakarebesa makumi manomwe. Pane chimwe chete nzira - kuna Antarctica.

On chii kondinendi havasi nzizi?

Akapiwa chokwadi kuti 99% of pamusoro yakafukidzwa Glacier Antarctica, pakukora rinopfuura hafu kiromita ingaita pachena kushaya yakaoma nzizi uye madhamu. Zvisinei, ichi hachisi chokwadi.

Kupindura mubvunzo pamusoro kuti, chii kondinendi asina nzizi uye nyanza, kuchitaura kuti kondinendi iri asipo, asi kuti chokuita Reservations shoma. Pfungwa yokutanga inokosha inotevera - muna Antarctica chaizvoizvo hapana nzizi zvechigarire, asiwo vamwe nani. upenyu Pasi kumatunhu, nzizi kuonekwa chete yokunaya.

On nechando rwizi yakaoma chete kuonekwa ari akanyanya kupisa pamusoro Antarctic nguva kuyerwa uye kazhinji kunobvumirwa Drain meltwater kubva arikunze echando. nzizi idzi vane maitiro nokukurumidza kosi uye kutakura navo kumbonyanya yakawanda mvura.

Saka, zviri pachena, chii kondinendi havasi nzizi, zvinenge, kugara. Zvisinei, unofanira vachiri nezvamai pamwaka nzizi.

Meltwater muna Antarctica

Pasinei nokuti mazizaya kwekusingaperi Antarctica anopfuura makumi manomwe muzana mvura yakachena yepasi wacho, okunze ari kondinendi kunoratidzwa aridity. Mune dzimwe nzvimbo anowira kusina kupfuura gumi masendimita mvura pagore, uye dzimwe nzvimbo vhuvhuta pamusoro kondinendi vari kunyimwa kunayisa kwemazana emakore akawanda.

In ezvinhu akadaro utsinye ari Fungisisa kunyange zviduku Rwako ose uchanyangadika mvura, izvo zviri manomwe Antarctica. Vazhinji vavo vane nguva shoma, uye pasi mamwe mamiriro ezvinhu kwavaigona ngaasatendwe. Zvisinei, mune utsinye ezvinhu Antarctica uye hova idzi dzinokosha.

Pfupi chokubuda meltwater anotakura zita peLuzon Creek, uye kureba asingaiti kupfuudza mamita mana. Panguva iyoyowo, wakarebesa rwizi nguva rinosvika kureba mana makiromita.

Zveonikisi River, ari wakarebesa muna Antarctica, muenzaniso undrained Dam, ndiko kuti, rinobatanidza madhamu maviri panguva dzakasiyana micheto ari Wright Valley. Chokwadi, hapana hove murwizi hakusi dzose, asi ine siyana chaizvo upenyu zvisikwa zvikuru chinyakare.

subglacial nyanza

Wakabata pamwechete mhinduro yomubvunzo wokuti chii huru hamuna nzizi, unogona kuenda mubvunzo kuti kuvapo mumadhamu makuru Antarctica. Sezvo zvava pachena, ari okunze kwesango kondinendi havagoni zvisisipo zvachose nzizi kana pemvura mugungwa, asi chihombe Antarctic chando ukobvu pave akanaka ezvinhu kuti paumbwe glacial madhamu ari mbiru.

Chinonyanya kukosha mune mashoko dziva yacho ndiyo East, akawana zita rayo kubva zita yemapurisa nesayenzi iri pedyo. The mudziva riri kudzika makiromita mana pasi chando, uye kureba maviri namakumi mashanu makiromita ari makubhiti anenge mashanu makiromita.

Sezvo nyanzvi, Lake inogona kuva upenyu, nekuti mvura yaro nezvi- oxygen, uye tembiricha waro madhigirii gumi pamusoro razero. Saka, achipindura mubvunzo kana, chii kondinendi havasi nzizi uye nyanza, zvakakodzera achibva dzakananga ezvinhu umo pane kondinendi. Tichifunga okunyanyisa akasiyana kondinendi iri kubva vamwe, hapana zvinoshamisa pakuti zvose Dzidziso jogirafi anoshanda pariri chete nevamwe ndishushikane.