The strength of the sun's ultraviolet (UV) radiation is expressed as a Solar UV Index or Sun Index.The UV Index does not exceed 8 in the UK (8 is rare; 7 may occur on exceptional days, mostly in the ...
Show Fullscreen Lastly, on October 1 Wuhan’s Line 7 was extended 15·1 km further north from Hengdian to serve the satellite city of Huangpi. At 84·1 km it is one of the longest metro lines operated as ...