IV. Choose the correct words. 1. He seems not to run up/ run away/ run out of energy, so he can work for hours without stopping. 2. Strawberries are plentiful/ limited/ renewable and cheap in summer. 3. Our harmful/ available/ nuclear natural resources will run out soon. 4. Using green sources of energy can make the air cheap/ unlimited/ clean. 5. Solar energy seems to be limited/ unlimited/ harmful - we can rely on it for a very long time. 6. The air becomes worse because of polluted/ polluting/ pollution gases from that factory. 7. We should rely much more on limited/ expensive/ alternative sources of energy. 8. The river provides a limited/ plentiful/ polluting supply of clean water to nearby villages - they don't worry about water supply any more. 9. The problem with fossil fuels is that they are not non-renewable/ renewable/ dangerous. 10. The public has more concerns about water/ nuclear/ solar energy because of waste.
