| environ. |
climate The average weather condition in a region of the world. Many aspects of the Earth's geography affect the climate. Equatorial, or low, latitudes are hotter than the polar latitudes because of the angle at which the rays of sunlight arrive at the Earth's surface. The difference in temperature at the equator and at the poles has an influence on the global circulation of huge masses of air. Cool air at the poles sinks and spreads along the surface of the Earth towards the equator. Cool air forces its way under the lower density warmer air in the lower regions, pushing the lighter air up and toward the poles, where it will cool and descend (世界上的一个地区的平均天气情况。地球地理的很多方面都影响了气候。赤道的，或者低纬度的崎岖要逼极地地区热，由于太阳光到达地球表面的光线的角度。赤道地区和极地地区的温度的差异影响了全球气流循环。冷空气在极地地区下降，沿着地球表面向赤道流动。冷空气推动在较低的地方的密度较低的暖空气，将轻的空气向上推向两极，在那里冷却下沉。); climatic |
