1) Drinking large amounts of water leads to. a) Liver cirrhosis b) Hypertension c) healthy 2) Water quality and purity affect human health a) True b) False  3) What is the pH at which water is pure? a) 8,6 b) 7 c) 2,4 4) Low pH of water turns it into a toxic solution a) False b) True 5) The cleanest water in the world is found in a) Austria b) Switzerland c) Greece d) Holland 6) Which country has the most polluted water in the world a) China b) Thailand c) India d) Norway 7) How do we get rid of radiation from the body a) Drinking water b) Sports c) Sit on the ground d) take the medicine 8) Do industrial factors such as factory smoke affect  a) True b) False

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