Amurka (Amurka), wanda aka fi sani da Amurka (Amurka ko Amurka) ko Amurka, ƙasa ce da ta ƙunshi jihohi 50, gundumar tarayya, manyan yankuna guda biyar masu cin gashin kansu, da mallaka daban-daban. Mai nisan mil miliyan 3.8 (mil miliyan 9.8), ita ce kasa ta uku-ta-hudu a duniya baki daya. Yawancin ƙasar suna cikin tsakiyar Arewacin Amurka tsakanin Kanada da Mexico. Tare da ƙididdigar yawan jama'a sama da miliyan 328, Amurka ita ce ƙasa ta uku a yawan jama'a a duniya (bayan China da Indiya). Babban birnin shine Washington, DC, kuma birni mafi yawan jama'a shine New York City. Paleo-Indiya sunyi ƙaura daga Siberiya zuwa yankin Arewacin Amurka aƙalla shekaru 12,000 da suka gabata. Turawan mulkin mallaka na Turai sun fara a karni na 16. Emergedasar ta fito daga cikin mulkin mallakar Birtaniyya goma sha uku da aka kafa a gabashin Gabar. Yawancin rikice-rikice tsakanin Biritaniya da turawan mulkin mallaka ya haifar da yakin Tawayen Amurka wanda ya kasance tsakanin 1775 zuwa 1783, wanda ya kai ga samun 'yanci {Asar Amirka ta haura wani fa] in ci gaban Yankin Arewacin Amurka, a cikin {arni na 19, - sannu a hankali, samun sababbin yankuna, kauracewa 'Yan asalin Amurka, da kuma amincewa da sababbin jihohi - har zuwa 1848 lokacin da ta mamaye nahiyar. A tsakiyar rabin karni na 19, yakin basasa na Amurka ya haifar da kauracewar bayi a Amurka. Yaƙin Spain da Amurka da Yakin Duniya na ɗaya sun tabbatar da matsayin ƙasar a matsayin ikon sojojin duniya. Amurka ta fito daga Yaƙin Duniya na II a matsayin mai ƙarfi na duniya. Ita ce kasar farko da ta fara kera makaman kare dangi kuma ita kadai ce kasar da ta yi amfani da su wajen yaƙe-yaƙe. A lokacin Yaƙin Cacar Baki, Amurka da Tarayyar Soviet sun yi gasa a sararin samaniya, wanda suka ƙaddamar da aikin Apollo 11 na 1969, sararin samaniya wanda ya fara jigilar mutane a duniyar wata. Thearshen Yaƙin Cold Cold da rushewar Soviet Union a 1991 ya bar Amurka a matsayin ikon cin gajiyar duniya. Amurka ita ce jamhuriyya ta tarayya da wakilcin dimokiradiyya. Kasancewar memba ce ta Majalisar Dinkin Duniya, Bankin Duniya, Asusun bada Lamuni na Duniya, Kungiyar Kasashen Amurka (OAS), NATO, da sauran kungiyoyi na duniya. Memba ce ta dindindin a Kwamitin Tsaron Majalisar Dinkin Duniya. Aasa ce da take da haɓaka, Amurka ita ce mafi girman tattalin arziƙin duniya ta hanyar lambar GDP, na biyu mafi girma ta hanyar sayen ikon iko, kuma yana da kusan kwata na GDP na duniya. Amurka ita ce kan gaba mafi girma a duniya da kuma fitarwa ta biyu mafi girma ta kayayyaki, ta darajar. Duk da cewa yawanta ya kai 4% na duniya baki daya, tana da kashi 29.4% na dukiyar da ke duniya, mafi girman dukiyar duniya tana mai da hankali a cikin ƙasa guda. Duk da bambance bambancen kudin shiga da na arziki, Amurka tana ci gaba da kasancewa mai girma a matakai na ayyukan ci gaban tattalin arziki, gami da albashi mai tsada, matsakaiciyar tsaka-tsaki, dukiyar mediya, ci gaban bil'adama, a cikin GDP mafi girma, da kuma yawan ma'aikata. Ita ce mafi karfin iko a duniya, tana da sama da kashi uku na kashe kudaden sojojin duniya, kuma babbar jagora ce ta siyasa, al'adu, da kimiyya a duniya.Gina tsari ne na aiwatar da gini ko ababen more rayuwa. [1] Yin gini ya banbanta da masana'antu a wannan masana'antar yawanci ya shafi samar da wasu abubuwa iri daya ba tare da wanda aka sayo ba, yayin da ake yin gini a wuri a wuri na wani abokin ciniki da aka sani. [2] Gina masana'antu ya ƙunshi kashi shida zuwa tara cikin ɗari na manyan ƙasashe na ƙasashe masu tasowa. [3] Ginawa yana farawa da tsari, zane da ake buƙata] kuma yana ci gaba har sai an gina aikin kuma yana shirye don amfani. Babban-sikelin gini yana buƙatar haɗin gwiwa a duk fannoni da yawa. Mai zanen gini yakan kula da aikin, kuma mai kula da ginin, injiniyan ƙira, injiniyan gine-gine ko mai gudanar da aikin yana kula dashi. Domin samun nasarar aiwatar da aiki, tsari na kwarai yana da muhimmanci. Wadanda ke da alaƙa da aiwatar da abubuwan more rayuwa da ake buƙata dole suyi la'akari da bukatun zartarwa, tasirin muhalli na aikin, ingantaccen tsari, tsara kasafin kuɗi, amincin filin gini, wadatar sufuri da abubuwan hawa, abubuwan dabaru, rashin daidaituwa ga jama'a wanda ya haifar Babban jinkiri na ayyukan ginin da kuma ba da umarni, da sauransu. Babban ayyukan gine-ginen ana kiran su megaprojects.Source: https://en.wikipedia.org/
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