When electrons are not shared equally in a covalent bond, the bond is called a polar covalent bond. It is possible for a molecule as a whole to be nonpolar even if it has multiple polar covalent bonds. Continue Reading.
Urumqi Climate - Seasons & Travel Advice. The temperature in Urumqi fluctuates greatly between day and night. The weather of Urumqi is extremely dry due to its geographical location and continental climate. Spring and autumn are short while winter and summer are long.
Usually the northern suburb of Urumqi has the first touch of spring in late March, the downtown area some two weeks later and the southern suburb ten days later again. Summer is flowery and lush here and lasts typically for about 90 days in the northern suburb and about 60 days in the downtown area.