presentación de powerpoint · hot water. finishing earths water resources global warming ....
Post on 04-Aug-2020
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98%
2%
salt water fresh water
87%
1% 12%
FRESH WATER
ice
rivers andlakesgroundwater
• Earth formed without atmosphere or oceans. If steam water existed it was in gaseous state.
• Volcano eruptions provocated an accumulation of gases that formed the first atmosphere.
• With the temperature decrease, steam water started to condensate. This way, the basins started to fill with acid hot water.
Finishing earths water
resources
Global warming
Increasing demand of
water
LACK OF WATER
• Africa and Asia are the most affected continents, 15 million people die every year:
• 20% no access of water • 50% shortage of sanitation
70 litres To clean one apple
900 litres To produce 1 kilo of corn
10.850 litres To produce a pair of jeans
15.500 litres To produce 1 kilo of meat
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