Rivers and lakes are made of water. What are the basic requirements for maintaining a healthy life in rivers and lakes?

Rivers and lakes are composed of water, and sufficient water is the basic requirement for maintaining healthy life of rivers and lakes.

The formation of lakes can be divided into the following main types:

1, due to crustal movement, deep valleys appear on the ground, and lakes formed after water accumulation are called tectonic lakes;

2. Glacier gouging causes depressions on the ground, and lakes formed by accumulated water are called glacial lakes;

3. After the end of the glacier melts, the rocks and sediments carried by the glacier accumulate into a dam, and the lake formed by the accumulated water at the top of the dam is called an ice lake;

4. The past bay has evolved into a lake;

5. When the volcano erupts, the magma flows into the river, and after cooling and solidification, it will form a dam to cut off the river, and the water above the dam will become a lake, which is called a volcanic dammed lake;

6. The lake formed by accumulated water in the crater is called crater lake.

Extended data

Jianghu poems

1, the lake here in August is an air with heaven.

Author: Meng Haoran

Dynasty: Tang Dynasty

Source: A letter from Dongting Lake to Premier Zhang.

Vernacular translation: Autumn water wins and rises, almost flush with the shore, water and sky are the same color, and it is integrated with the sky.

2. Sailing alone in the blue sky, I can see the Yangtze River flowing in the sky.

Author: Li Bai

Dynasty: Tang Dynasty

Source: Yellow Crane Tower Meng Haoran's farewell on his way to Yangzhou

The sail went farther and farther, leaving only a shadow, and finally disappeared into the blue sky connected with water and sky, only to see the surging Yangtze River flowing eastward.