保护动物英文PPT课件

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• Deforestation • Global Warming • Water pollution • Air pollution
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Global Warming
burn fuels carbon dioxide drift into the atmosphere Global warming trap the heat from the sun
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Summary
However, it may be that we still have a long way to go before we have a "clean" world. Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do. People will continually find new ways to control pollution.
Most of the world’s rainforests are in danger of destruction by loggers, farmers and developers. They are disappearing at a rate of 100 acres a minute.
Environmental Protection
Only to obey nature in order to overcome nature. -Darwin
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Our globe is in danger
Nowadays, more and more people realize it is necessary and important to protect the environment. Most serious environment problems are in the world.
Take measures to protect rainforest .
• Plant trees • No disposable chopsticks and cups • Ban deforestation
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Water pollution
It is generally accepted that water pollution is a serious public hazard today. Rivers all over the world are becoming polluted with garbage and dangerous chemicals. Ships contribute to the problem because they rely on rivers for disposing of wastes. Oil and other chemicals can kill fish and make water unsafe for drinking. Because they rely on rivers for disposing of wastes. Oil and other chemicals can kill fish and make water unsafe for drinking. In a word, polluted water is a big problem to everyone.
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2020/1/2
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Water pollution
Some measures
Certain counter measures need to be taken as soon as possible. To begin with, the governments of all countries are supposed to formulate rules and regulations to deal with the pollution problem. In addition, factories in towns and cities must be prohibited from draining waste liquids into rivers before they are totally treated and purified. I feel if they violate relevant rules or laws, they should be finllution
Air pollution is one of the major problems of the modern world. A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too. Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.
The global warming effect cause some problem: •Abnormal weather patterns •Rises in sea level •Negative impact on agricultural production
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Deforestation
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