îïðîñû ïî çàùèòå îêðóæàþùåé ñðåäû
Is the environment pollution a very serious problem today?
Why are so many species of flora and fauna disappearing today?
What is the Red Book of Nature ?
Does transport poison the environment?
What causes acid rains?
What is the ozone depletion causes by?
Why is the ozone depletion dangerous?
What is the main function of the forests?
Can the problem of environment protection be solved by one man or by one country?
What did the Chernobyl accident show to the people?
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