ONE ENVIRONMENT PROBLEM IN THE WORLD TODAY IS……..

41. - 3 DE THI HK 2 ANH LOP 11 3 DE THI THU HK II LOP 11 NH 20132014 TU LUAN
3 DE THI HK 2 ANH LOP 11 3 DE THI THU HK II LOP 11 NH 20132014 TU LUAN

41. One environment problem in the world today is……..