1. Write true (T) or false (F). [5 points] 1 Seventy percent of the Earth's surface is fresh water. 2 It is better to take a car than a bus. 3 Fifty percent of water supplies in the United States are used for raising animals 4 Household appliances should be plugged in when you are not using them. 5 It is a good idea to recycle the bags you use. 2. Choose the correct answer. [5 points] 1. What does 'fresh water' mean? a water that people can drink b water in the sea c none of the above 2. According to the text it is best to ... a take the bus rather than walk. b drive a car that uses less petrol. c eat less meat and more fruit and vegetables. 3. Which of these does not help the environment? a Eating more chicken than dairy products. b Jogging to work. c Recycling bags. 4. It is OK to ... a keep the tap running when you are brushing your teeth. b take the bus if your destination is far.