Natural phenomena and weather changes

1. Phenomenon: Wear fur coat in the morning, gauze in the afternoon, and eat watermelon around the stove.

Reason: There is more sand and less water in desert area, and the specific heat capacity of sand is small, so the temperature difference between day and night is large. In desert areas, there is no heat preservation, so it is very cold in the morning. 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 went down and the temperature dropped rapidly. That's why this phenomenon has formed. Therefore, there will be a phenomenon of wearing a fur coat early in the morning, wearing gauze at noon and eating watermelon around the stove.

2. Phenomena: polar extreme days and long days and short nights in summer.

Reason: This is caused by the earth's revolution and rotation.

3. Phenomenon: The mountain is cooler than the mountain.

Reason: Every time the altitude rises 100 meters, the temperature drops by 0.6 degrees.

4. Phenomenon: The climate in the south of Shannan is different from that in the north.

Cause: The influence of topography on climate.

5. Phenomenon: It's good to enjoy the cool under the big tree.

Reason: Green space can reduce the temperature of the environment, because the crown of garden plants in green space can reflect a part of heat energy (about 20-50%) brought by solar radiation, and more importantly, garden plants in green space can absorb a lot of heat energy in the environment through transpiration (35-75% of radiation is absorbed by plants, and the remaining 5-40% passes through leaves), thus reducing the temperature of the environment, releasing a lot of water and increasing the humidity of the ambient air.

6. Phenomenon: El Ni? o phenomenon

Causes: the cold water area in the sea area south of the equator in the eastern Pacific disappears, the trade winds in the southeast of the equator in the Pacific disappear, and the hot water in the equator in the western Pacific spreads eastward, (a series of climate anomalies caused by the above three phenomena.

7. Phenomenon: Coal fields are discovered in polar regions.

Cause: plate movement: the original low-latitude continent was covered with dense forests, and later it drifted to the Antarctic region due to continental drift.

8. Phenomenon: The Great Rift Valley in East Africa continues to expand.

Cause: Plate movement: The Great Rift Valley in East Africa is located at the growth boundary.

Phenomenon: The seaside is cooler than the land in summer and warmer than the land in winter.

Reason: Sea-land temperature difference.

10. Phenomenon: Forest remains and ancient rivers were found at the bottom of the Taiwan Province Strait.

Reason: Due to the change of sea route, the original land has become an ocean.