Bài 1. Choose the best option to fill in the blank. Question 16: When you save energy, you not only save money, you also reduce the demand for ________ such as coal, oil, and natural gas and that is a great way to play a part in saving the planet. A. carbon footprint B. electricity C. fossil fuels D. biogas Question 17: In India, the demand for ___________ has always been more than the supply. A. shortage B. sources C. slogan D. electricity Question 18: __________ energy is produced by collecting sunlight and converting it into electricity. A. Hydro electric B. Nuclear C. Solar D. Wind Question 19:There are many available___ power sources in Vietnam including sun, wind, water, etc. A. nuclear B. hydro C. renewable D. solar Question 20: Laos and Cambodia have big plans for building up to 11 ___________ on the lower Mekong. A. dams B. slogans C. energy D. coals Question 21: ___________ can be an excellent source of free, renewable energy for poor farmers. A. Turbine B. Biogas C. Solar panel D. Bulb Question 22: The government has warned that Britain will face power _______ in the coming winters. A. coal B. shortages C. slogans D. energy