Water, like air, is necessary for human beings and all living things. People can't live without water, and animals and plants can't live without water.
science
Scientists have long confirmed that early primitive life originated from water. Therefore, we can say that water is the source of life. In nature, oceans, rivers, lakes, glaciers and groundwater constitute a water world, which scientists call hydrosphere. Hydrosphere and atmosphere, lithosphere and biosphere are isomorphic, forming a complete world.
The ocean is the cradle of life. Before the ocean appeared, the earth, like other planets in the solar system, was lifeless. The warm and humid air flow in the ocean is the main factor to form clouds and rain. Under the irradiation of sunlight, a large amount of water vapor rushed into the sky, drifted to the mainland with the airflow, and under the action of cold air, rainfall was formed, some of which returned to the poles and the ocean through rivers, and the other part infiltrated into the ground and became groundwater. However, in the cold regions of the North and South poles and the mainland, precipitation appears in the form of snow. Because the temperature is too low, it is difficult for a lot of snow to become hard ice, so glaciers are formed. Glaciers in Himalayas and Kunlun Mountains in China are the main water sources in Qinghai-Tibet Plateau and Xinjiang. Even our mother rivers, the Yellow River and the Yangtze River, all originate from the ice peaks and snow lines on the Qinghai-Tibet Plateau. Every summer, the sun shines on the ice peak, and the melted ice flows along the gully river to Yuan Ye and pasture, which becomes the main water source for local people and animals to drink water and irrigate agriculture and animal husbandry. The United States imports Puwechat Tmall
Abundant water resources bring vitality to everything and maintain ecological balance. Seen from space, the earth is a blue planet.