Geography. Pa zimene Africa palibe mitsinje

mafani zambiri za malowo ndi funso la momwe, pa zomwe Africa palibe mitsinje? Ndi lingaliro laling'ono, mungathe kukumbukira kuti mtsinje ndithudi uko mu Africa, Asia, Europe, m'dera la ku America ndipo ngakhale mu Australia, ngakhale makamaka ali otentha bwinja lokhalokha, pali makumi mitsinje wokongola yaitali. Pali njira imodzi yokha - kwa Antarctica.

Pa zimene Africa palibe mitsinje?

Popeza chakuti 99% ya pamwamba yokutidwa ndi glacier Antarctica, ndi makulidwe a limene kuposa theka kilometre zingaoneke zoonekeratu mitsinje kusowa kumtunda komanso nyanja. Komabe, zimenezi si zoona.

Tsatirani ndi kufunsa zimenezo, kodi Africa alibe mitsinje ndi nyanja, ndi bwino kuti kontinenti izi palibe, koma kuchita ndi otetezedwa ochepa. Mfundo yoyamba zofunika lotsatira - mu Antarctica kwenikweni palibe mitsinje okhazikika, komanso ena abwino kwambiri pa moyo wa zigawo Earth, mitsinje amaoneka okha mvula.

Pa achisanu mtsinje kumtunda yekha kuwonekera otchulidwa pa miyezo Antarctic nthawi ndi amakhala zimapanga kuda meltwater ku periphery ayezi. mitsinje iyi ndi khalidwe mofulumira Inde ndi kuchita nawo mwachilungamo wambirimbiri madzi.

Choncho, zimaonekeratu, kodi Africa palibe mitsinje, osachepera, nthawi zonse. Komabe, muyenera akadali kukuuzani mitsinje nyengo.

Meltwater ku Antarctica

Ngakhale kuti kuwundana wosatha wa Antarctica ndi maperesenti oposa makumi asanu ndi awiri a madzi lathuli atsopano, nyengo m'dzikoli amakhala ndi aridity. M'madera ena imagwera zosaposa khumi masentimita mvula chaka, ndi ku madera ena mphepo m'dzikoli ali mosatsata mpweya kwa zaka zambiri.

Wotere nkhanza pa amamvetsera ngakhale utuluke zing'onozing'ono madzi Sungunulani, ndiwo seveni Antarctica. Ambiri a iwo pang'ono yaitali, ndiponso nthawi zina akhoza ananyalanyaza. Komabe, mavuto a Antarctica ndi mitsinje ali ofunika.

The otaya yayifupi wa meltwater amanyamula dzina chilumba cha Luzon Creek, ndi kutalika kwake si upambana mamita anayi. Pa nthawi yomweyo, mtsinje wautali kuposa nthawi kufika kutalika makilomita makumi anai.

Onekisi Mtsinje, pokhala Alevi Antarctica, ndi chitsanzo cha posungira undrained, ndiko kuti, zikugwirizana nyanja ziwiri pa mbali zosiyanasiyana za Wright Valley. Kumene, mulibe nsomba mu mtsinje uwu si mwachizolowezi, koma ali ndi moyo yosiyanasiyana zolengedwa zambiri achikale.

subglacial nyanja

Popeza anachitira ndi yankho la funso pa zimene kumtunda palibe mitsinje, inu mukhoza kupita ku funso cha kukhalapo kwa nyanja ku Antarctica. Monga bwino, mu zikhalidwe nyengo ya kontinenti kum'mwera sangaonekerenso palibe mitsinje chokhalitsa kapena pamwamba pa nyanja, koma chachikulu Antarctic ayezi makulidwe amalenga yabwino mapangidwe nyanja glacial mu ndime ya.

The kwambiri mwa mawu a nyanja m'dzikoli ndi East, nalo dzina lake ndi dzina la siteshoni sayansi ili pafupi. nyanja ili pa akuya makilomita anayi pansi ayezi, ndi m'litali ndi makilomita mazana awiri mphambu makumi asanu pa m'lifupi za makilomita makumi asanu.

Monga ofufuza amasonyeza, nyanja akhoza kukhala moyo, chifukwa madzi ake ali wolemera mu mpweya, ndi kutentha kwake ndi madigiri khumi pamwamba ziro. Motero, mafunso ngati, kodi Africa palibe mitsinje ndi nyanja, m'pofunika lozani zinthu zina zimene pali Africa. Popeza kusiyana kwakukulu kwa Africa izi kwa ena, palibe zodabwitsa mu chakuti mfundo zonse madera ntchito kwa anthu ena sangagwirizane ena.