Ecology for children. 15 stories and 15 extremely important eco- logical problems with numerous practical tips for the preservation of our planet. Our planet Earth is old for millions, even billions of years. It’s good at its age, is not it? But in recent decades, we do not care too much about it. Po...lluted air, dirty water, trash in nature can’t make us proud. It‘s time for all of us to make sure that our Earth shines in all its beauty. Matt and Mary have already decided - they became ECO. First, at school, then at home, on the street, in the city, in the woods, everywhere.

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