Use words from above to complete the sentences. Use words from above to complete the sentences.1. The amount of ________ in the air can be bad for our health.2.Sam had to change the ________in his torch.3. My uncle has given me a calculator that is____________.4. A lot of rubbish is caused by _______ being thrown away.5. We can save a lot of _______ by turning lights off.6. Rocks, rivers and the air are all part of our______.