WHICH OF THE FOLLOWING IS NOT MENTIONED IN THE PASSAGE AS AN ALTERN...

4. - DE DAP AN HSG 12 THANHHOA
Tiếng Anh DE DAP AN HSG 12 THANHHOA

4. Which of the following is NOT mentioned in the passage as an alternative source

of energy ?

A. Burning of garbage B. Geothermal power

C. Synthetic fuels D. Electricity