WHAT IS THE ADVANTAGE OF THESE ALTERNATIVES

4. - DE THI TUYEN LOP 10 MON ANHCO DAP AN
Lớp 10 Tiếng Anh DE THI TUYEN LOP 10 MON ANHCO DAP AN
4. What is the advantage of these alternatives? A. They are non – renewable forms of energy. B. They are environmentally friendly energy sources. C. They are all very practical. D. They are inexpensive to exploit.