C! water vapor freezes into crystals
Urban areas are characterized by high population density when compared to other areas
Areas that are located on the outskirts of cities or large urban areas but retain rural characteristics such as agricultural productions are generally considered as peri urban areas
As stars get older they get cooler and you know when you light a flame the part at the bottom is hotter so its also applies to stars, the star is very hot because it is newer and has more gas so it appears blue to us
Homo ergaster may have been the first human species to leave Africa and fossil remains show this species had expanded its range into southern Eurasia by 1.75 million years ago. Their descendents, Homo erectus, then spread eastward and were established in South East Asia by at least 1.6 million years ago.Oct 30, 2015
