Choose the best answerSolar energy is a long lasting source energy ,and it can almost anywhere .To generate solar , we only need solar cells and ! Solar cells can easily be installed on house , so we don't need any new space .Compared to other renewable source ,they also posess many advantages : wind and water power rely on turbines which noisy ,expensive and which take up large space . Solar cells are totally silent and . As they have no moving parts , they require little maintenance and have long lifetime ; 1.A .of B.in C. for D. at 2 A. be used B. is used C. be using D . to be used 3. A. system B energy C . the sun D. the wind 4. A . the earth B . the planet C . the sun D. the moon 5, A . yards B. roofs C. gardens D. doors 6. A .is B. be C. are D. was 7. A. polluted B.polluting C. non - polluted D . non- polluting 8. A . some B .the C. an D. a |