GIÚP MÌNH VỚI ~~~~PLS CHỈ 1 BÀI NÀY THOY Ex 3. Fill in the blank with one suitable word from the box. hydro, heat, abundant, freely, renewable, friendly, turbines, solar, available, generate 1.How much power output will the new wind __________ increase? 2.Batteries of solar energy are eco- ________ products. 3.Renewable energy sources are favoured because they are ________. 4.In this area natural gas is not always ________. 5.________ power is generated from the energy of fast running water. 6.Solar energy is ________, and solar power can be used to generate electricity. 7.My family will be receiving ________ panels for home tomorrow morning. 8.Fossil fuel burning produces ________ and carbon dioxide.