WHAT IS THE MAIN USE OF BIOGAS

32. - DE THI HOC KY 2 MON TIENG ANH LOP 11 TRUONG THPT TRAN HUNG DAO TP HO CHI MINH NAM HOC 2016 2017 CO DAP AN 32. - DE THI HOC KY 2 MON TIENG ANH LOP 11 TRUONG THPT TRAN HUNG DAO TP HO CHI MINH NAM HOC 2016 2017 CO DAP AN
DE THI HOC KY 2 MON TIENG ANH LOP 11 TRUONG THPT TRAN HUNG DAO TP HO CHI MINH NAM HOC 2016 2017 CO DAP AN
32. What is the main use of biogas?A. It is used mainly for cooking and heating. B. It is mainly used for lighting.C. It is mainly used for operating. D. It is mainly used for producing in factories.