How is the rain formed?
1. Rain belongs to water drops falling from the clouds. Because the water on the land and sea surface will evaporate, the water will become steam under the action of evaporation.
2. Then the water vapor starts to rise, and when it rises to a certain height, it becomes cold, and when it is cold, it becomes small water droplets.
3, then these small water droplets will form a cloud, and then these small water droplets will collide with each other in the cloud, thus merging into large water droplets.
When these big water drops are too big for the air to hold, they will also fall from the clouds, thus forming rain.
Ancient poetry on August 15th.
There are many ancient poems about August 15th, such as "Appreciating the Moon in the Mid-Autumn Festival" by Liu Ban: Mid-Autumn Festival is a wave of bounty, and it's cool to survive the summer, and "Niannujiao" by Wen Zhiming? Mid-Autumn Festival to the Moon: Osmanthus fragrans floats on jade, flowers are everywhere in the first month, and the night is as cool as washing.