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1、The sea is the veritable liquid mineral deposits, average every cubic kilometers of sea water 3570 tons of minerals, currently known in the world more than 100 elements, 80% can find in seawater.The sea is freshwater sources on land and climate regulator , the annual evaporation freshwater 450 thous
2、and liters kilometers, 90% by rainfall returns ocean, 10% fall upon the land into rain and snow, and then down the river returns to the ocean. Seawater desalination technology is developing to become industry. Some people predict that, along with the deterioration of ecological environment, human sh
3、ushing last way to solve is likely to seawater desalination. After spring rain, the gifts, pathogenic bacteria, virus spread easily, so the spring wind infectious diseases often easily outbreak. Everyone should protect yourself, pay attention to the physical exercise, strengthen body resistance, pre
4、vent the happening of the disease Rain, said two meanings, one is the weather warms up, precipitation gradually increased, the other is the precipitation in form, snow gradually less, and the rain gradually Water is the source of life, and the sunshine, the air is same, it is indispensable to life, the most basic, most necessary of natural resources.
