Fill in the blank with the suitable word Fossil fuel , environment , waste, recyclables, made from, installing, renewable, substainable, evelopment, reduce, resources 1.We should save energy to protect the…………….. 2.People should …………the amount of rubbish. 3.By………….solar panels on the roof, people can use solar energy. 4.Hydroelectricity is……………………water. 5.Coal,oil and natural gas are called……………… 6. People are exhausting natural…………………. 7. …………………energy is nearly unlimited. 8.People had better not …………………..energy. 9………………….is one of all countries’ priorities. 10.Bottle, cans, paper are ………………………..