推荐回答(4个)
We live in a world which is surrounded by the water, we need to take in water every day, without water, no one can live for a long time. Some people even die of lacking water, so water is very important. We should not waste water, we can use it in recycle. We also need to drink more water, so we can keep healthy.
The impact of climate
Water has a regulatory role on the climate. Water vapor in the atmosphere can block the radiation the Earth 60%, the protection of the Earth is not cooling. Marine and terrestrial water body can absorb in the summer and accumulation of heat, so temperature is not too high; in the winter can slowly release heat, so temperature is not too low.
Marine and surface evaporation of water into the sky formed a cloud, cloud water through precipitation Down to become rain, winter will be turned into snow. Drop-in on the surface of the water to seep into the ground floor of the formation of groundwater; groundwater out from the stratum to form a spring, through streams, and rivers into the sea. Form a cycle.
Rain and snow precipitation, such as activities on the important impact of climate formation. In temperate monsoon climate, the monsoon brings a wealth of water vapor to form a distinct wet and dry autumn.
In addition, in nature, because of different climatic conditions, water will be to hail, fog, dew, frost, such as the form and influence the climate and human activities.
The impact of geographical
71% of the Earth's surface has been covered with water from the air, the earth is a blue planet. Water erosion of rock soil, river erosion and deposition, sediment transport, and create a plain, changes in surface morphology.
The Earth surface water constitute the hydrosphere, including the oceans, rivers, lakes, swamps, glaciers, snow cover, groundwater and atmospheric water. Injected into the ocean because of the water with some salt, together with the annual accumulation and evaporation, sea and ocean water is salt water, should not be used directly for drinking. Some lakes also contain saline water. The world's largest body of water in the Pacific. North American Great Lakes are the largest freshwater systems. Eurasia on the Caspian Sea is the largest saltwater lake.
The size of the Earth, Sheung Shui, there is around 1.36 billion cubic kilometers. Which
Ocean account for the 1.32 billion cubic kilometers (or 97.2%).
Glaciers and ice sheets accounted for 25 million cubic kilometers (or 1.8%).
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