4b Work in pairs or in groups. Read and say which advice is the most useful. Why? bacteria which clean the underground water, e.g. Rechargeable batteries are more The chemicals later will come back againexpensive than usual batteries. But we into our own drinking water. These chemicalsshould use rechargeable batteries more are also found in fish and other wildlife.often because they are nature-friendly if 3) Try to use electronic papers and maga-we want to help nature.zines.1) Keep a large bottle of water at home 4) Buy rechargeable batteries and use aand use a glass instead of buying individual battery charger. One rechargeable batterybottles of water. If you must buy a single-use can be used instead of 100 usual batteries.plastic bottle while out, make sure that the They will perform better if you keep them inempty bottle goes to the recycle container the refrigerator.instead of the garbage can. If you do not5) Most supermarkets have started usinglike the taste of your tap water, you can use reusable bags to plastic bags. You can buyan inexpensive filter.and use them every time.2) Never put liquid medicine or other che-6) Buy local products. This makes lessmicals to a toilet. They kill up to 80% of useful pollution from transporting goods for longdistances.UNIT 9 THE ENVIRONMENT72​