Use geographical knowledge to explain 30 geographical phenomena or things in tourism

1. Wear a fur coat in the morning, gauze in the afternoon, and eat watermelon around the stove - Xinjiang has more sand and less water, but the specific heat capacity of sand is small, so desert areas with large temperature differences between day and night do not maintain heat. The heat stays on and it's cold. After the sun rises, the sand is very hot, and the temperature difference between morning and evening can reach more than 30 degrees. In the afternoon, the sun sets and the temperature drops rapidly. Then this is the reason for this phenomenon. So there is a phenomenon of wearing a fur coat in the morning, gauze in the afternoon, and eating watermelon around the stove. 2. The phenomenon of extreme daytime in the polar regions and long days and short nights in summer are caused by the revolution and rotation of the earth. This principle should be very simple. 3. The shady green space under big trees can reduce the temperature of the environment, because the canopy of garden plants in the green space can reflect part of the heat energy brought by solar radiation (about 20-50%). What's more, garden plants in green spaces can absorb a large amount of heat energy in the environment through transpiration (plants absorb 35-75% of radiation, and the remaining 5-40% pass through the leaves), lowering the temperature of the environment while releasing a large amount of water. , increase the humidity of ambient air (18-25%). For Beijing, which is hot and dry in summer, this function of green space can greatly increase people's living comfort. 4. Look at the sea on the beach. The sea is curved. I don't need to elaborate on this. Emma is 30 years too old. Let me think about it.