suppose we are living in the world where no fossil fuels are available from where we will get the energy to run or machines

suppose we are living in the world where no fossil fuels are available

1.	suppose we are living in the world where no fossil fuels are available from where we will get the energy to run or machines
Answer» 1.water ,we can use hydropower 2. sun, we can use SOLAR power 3. tides , we can use tidal ENERGY