Trang chủ
78. WHAT IS THE OZONE LAYER MADE OF
78. WHAT IS THE OZONE LAYER MADE OF
DAP AN HSG LOP 10 2007
Nội dung
Đáp án tham khảo
77.78. What is the ozone layer made of?a. fluorocarbons
b. oxygen
c. shields d. ultraviolet light
Bạn đang xem
77.
-
DAP AN HSG LOP 10 2007
