cuu ----- Nội dung dịch tự động từ ảnh ----- organization nearer fossil fuels charities resources building SUBMIT There are a lot of ways we can help. We must keep water clean and not waste it. Some (1) are helping people to collect and store water. They are also (2) new dams, wells, and pumps, so that people can have clean water (3)___ their homes. We must use non-renewable (4) carefully. Scientists are investigating ways to use renewable resources, like sun, wind, and water, to make electricity so that we don't need to use so many (5). We can also try to use less electricity.