A yankin na United States: da girma da kuma siffofin

A fannin Amurka muhimmanci yake cewa shi damar jihar mukamansu uku a duniya cikin kasashen da suka fi a kan manyan filaye. Ilimin kididdiga lissafin nuna adadi a matsayin babban matsayin miliyan 10 sq. Km. The United States ne gaba na kawai Rasha da kuma China, da kuma ci gaba da wannan jerin Canada - kasashen makwabta United States, yankin na da sa shi samun wani qafafunku a karo na hudu wuri.

Ya kamata a lura da cewa irin wannan tsari a cikin jerin kasashe ne wajen sabani, kamar yadda ya dogara a kan wasu selection sharudda. Alal misali, akwai wuraren da cewa har yanzu tsaya a sa tuntuɓe a cikin dangantaka tsakanin kasar Sin da India. Moot batu akwai a cikin lissafi na ƙasar shagaltar da ta Amurka. Yana da wani tsibirin dake a cikin Pacific Ocean kuma a West Indies. Dangane da ko su kama su a cikin account na iya bambanta ma da real yankin na Amurka.

Kusan duk jihohin, wato 48, na data kasance 50, da wani ɓangare na Amurka suna located a Arewacin Amirka. A babba gare su - Alaska. Yana maida hankali ne akan kan miliyan 1.7 sq. Kilomita da aka rabu da babban ƙasar Amurka ƙasa na Canada. A bambanci, Rhode Island shi ne mafi karami. Its yanki ne kawai 4 sq. M. km, kuma ƙasar ba ya dauki ko da uku daga cikinsu. A karshe jihar sun hakikance ga Amurka, ya fara Hawaii, to wanda fiye da 4 da dubu. Kilomita daga westernmost batu na nahiyar Amurka.

A babban yanki na Amurka ya kai ga wani m kewayon bambancin siffofin a cikin labarin kasa na kasar da kuma nuna gaban iri daban-daban na sauyin yanayi, ko da yake mamaye mafi yawa matsakaici. A wurare masu zafi sauyin yanayi za a iya ji kawai a Kudu Florida, kuma ko da a Hawaii. Alaska ne northernmost jihar, yana mai iyakacin duniya da sauyin yanayi da kuma kudu maso yammacin bangare na kasar sun yalwata a hamadar.

Great sararan kasa nuna Semi-m yanayi, da kuma California, dake kan Pacific Coast - Rum. A yankin na Amurka, wanda aka kẽwayesu da Gulf of Mexico, sukan fallasa su mahaukaciyar guguwa da tornadoes. A yammacin ɓangare na Great sararan kasa suna located m duwãtsu, suna shirya kamar fan, fadada daga arewa zuwa kudu, ta isa cikin Jihar Colorado (na takwas jiha mafi girma a cikin US) a cikin tsawo na 4300 km.

Amurka Territory yana daya daga cikin mafi girma a ruwa tsarin a duniya. An kafa ta Kogin Mississippi, da Missouri da kuma Jefferson, wanda yake malala a cikin tsakiyar ɓangare na kasar, za daga arewa zuwa kudu. Su duka girma na wannan tsarin ba ka damar daukar 4th wuri a cikin jerin manyan ruwa tsarin na duniya.

Kamar yadda za a iya gani, a babban yankin na Amurka ke haifar da bambancin rayuwa yanayin da (a hade tare da bege ga mafi alhẽri mai rai yanayi) take kaiwa zuwa wani halin da ake ciki inda manyan lambobi na Amirkawa suna tilasta yin hijira har abada. Kamar yadda na farko kimomi, da yawan waɗanda suka kowace shekara suna cire daga kujerun motsi zuwa wasu jihohi, fiye da miliyan 5. Man.

Ya kamata a lura da cewa American al'umma ne ma daya daga cikin matafiya a cikin duniya. A manyan yawan Amirkawa kasance da kasashen waje, da yin nazarin duniya. Babban kwatance ga sauran tsibirin ne Pacific da kuma Turai.