1, snow
Snow, snow is a natural phenomenon, and the water vapor in the air condenses and then falls to the ground. Water is the foundation of all kinds of life on the earth, and its changes and movements have created our world today. On the earth, water is constantly circulating. The water in the ocean and on the ground is heated and evaporated into the sky. The water vapor moves to other places with the wind. When they encounter cold air, they form precipitation and return to the earth's surface. There are two kinds of precipitation: one is liquid precipitation, which is rain; The other is solid precipitation, which is snow or hail.
2. Related poems
The setting sun is far away, the weather is cold and the house is poor. Chai Men heard dogs barking and went home on a snowy night. Liu Changqing, the master of Furong Mountain in the snow.
3, the formation of snowfall must meet two conditions:
One condition is that water vapor is saturated. In high altitude and low temperature environment, ice crystals are more likely to be produced than water droplets. Another condition is that there must be condensation nuclei in the air.