Smog is often linked to pollution in big cities. How serious do you think the problem of smog is in the world today?, How has the climate changed in your country over the last 20 years?, What kind of prediction about the future of the environment worries you most?, In your opinion, what is the most effective way to reduce waste?, Some people say storms are beautiful; others say they are frightening. What do you think?, Which is more important for the future: learning how to reuse things or how to recycle materials?.
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