resources & environment ch. 4. solar energy
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RESOURCES & ENVIRONMENT
CH. 4. SOLAR ENERGY
http://cafe.naver.com/ArticleRead.nhn?clubid=18639531&page=1&menuid=21&boardtype=L&articleid=805
4-1. WATER CYCLE
4-1-1. Water
H2O
http://cft.fis.uc.pt/eef/FisicaI01/fluids/thermo20.htm
Water on Earth
Sea water(1.37*109 km3)
Terrestrial water
Surface water (2.3*105 km3)
Groundwater (8.4*106 km3)
Glacier/Ice/Snow(2.9*107 km3)
Vapor(1.3*104 km3)
http://water.usgs.gov/edu/watercyclesummary.html
4-1-2. Significance of Water
• Essential constituents of life forms
• Niches for various organisms
• Climate (esp. temperature) controller
• Reservoir of many invaluable resources
• Transport medium for material cycles
4-1-3. Water Cycle
http://water.usgs.gov/edu/watercyclesummary.html
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