Asia varies greatly across and within its regions with regard to ethnic groups, cultures, environments, economics, historical ties and government systems.
ˈeɪʒə vˈɛɹiz ɡɹˈeɪtli əkɹˌɑːs ænd wɪðˌɪn ɪts ɹˈiːdʒənz wɪð ɹᵻɡˈɑːɹd tʊ ˈɛθnɪk ɡɹˈuːps, kˈʌltʃɚz, ɛnvˈaɪɹənmənts, ˌiːkənˈɑːmɪks, hɪstˈɔːɹɪkəl tˈaɪz ænd ɡˈʌvɚnmənt sˈɪstəmz.