The earth's water resources are vital to people and ecosystems . Water is the source of life, whether it is drinking water, agricultural irrigation or industrial production, water plays an irreplaceable role. About 70% of the earth's surface is covered by water, but fresh water resources available for human use account for only 2.5% of the total water on the planet, and are unevenly distributed, which makes water especially precious .
Importance of water resources
Survival needs : water is an integral part of human needs and participates in various physiological activities of the human body. Not getting enough water can lead to health problems and even life-threatening .
Agricultural irrigation : water is the cornerstone of agricultural production. Without enough water resources, crops could not grow and food security would be threatened .
Industrial production : water also plays an important role in industrial production, and many production processes require the participation of water. Lack of water resources affects the efficiency and cost of industrial production .
ecosystem balance : Water is an important part of the ecosystem, maintaining its balance and diversity. Lack of water resources can lead to the collapse of ecosystems and affect biodiversity .
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The importance of cherishing water is mainly reflected in the following aspects
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