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.
Machu Picchu Weather. The climate in Machu Picchu is very consistent, with nearly constant temperatures year-round, and the year can be divided into two season-the dry season and the rainy season. May through October: The winter in the Southern Hemisphere is also the dry season, which means it's usually the best time to visit Machu Picchu. Temperatures are quite comfortable, with the highs in the 80s and lows in the high 40s, though the temperature can drop to freezing in some cases.