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Id like to tell you about ecology and its meaning nowadays. I think its one of the most important problems for any society today. There is an environmental pollution, forest cutting, disappearance of animals and plants, lack of clean water. Scientist take part at discussion of all these problems. But they cant do anything alone. Of course, they need help. First of all, simple people must help in protecting our nature and environment. In order to save our planet and to solve at least some ecological problems, we should do everything we can. And the most important, I guess, is taking care of all alive beings. Lets begin to live in clean air, clear streets and unpolluted towns and cities.