A sustainable city is a place where people can live safely and comfortably. Good __________ helps people travel without using a car every day. Cities also need more __________ like parks to improve air quality. To reduce rubbish, people should practise __________ and __________ at home and at school. Buildings can be more __________ by using LED lights and better insulation. Many cities also use __________ energy such as solar or wind power.public transport; green spaces; recycling; waste s ____ ____ ____ ____ ____ ____

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