Z skolavpohode.cz

We can live on this planet thanks to basic components, which are necessary for human existence - air, water, soil and the sun. But the paradox is that we are polluting these most important things. Pollution is one of the main problems of our age. We must think of the quality of our air, water and soil more than any time before, because the environmental problems affect all countries around the world.

Pokračování je přístupné pouze pro registrované. Přihlaš se nebo se zaregistruj.