yisiphi isifundazwe esishiswa kakhulu ilanga e-US?
I-Arizona ibilokhu yaziwa ngesimo sezulu sayo esomile nesomile. Ngokwesilinganiso sonyaka sokukhanya kwelanga esingu- 5,755 kJ / m2, iphuma phambili ezifundazweni ezinelanga kakhulu e-US.