английский ответить на вопросы 6. Answer the following questions. 1. Is it easy for us to take the quality of our drinking water for granted? 2. What do elaborate and carefully managed systems do long before safe pleasant- tasting water reaches our tap? 3. Life is believed to have originated in the air, isn't it? 4. What is one of water's most important properties? 5. Is water a solvent for all other substances? 6. What do living organisms use aqueous solutions for? 7. What does our health depend on? 8. Since what time has the link between our water supply and disease been 9. Why do we need to use water wisely and protect it? 10. Why is the Earth often called the "blue planet"? 11. Where has civilization developed historically? 12. Why do water purification and recycling become increasingly important?

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