Documents 4A LAU SIN YIN 4B CHOW HAU YI 4D LAU YAN YU SHUM KING SUN.

Slide 1 Slide 2 4A LAU SIN YIN 4B CHOW HAU YI 4D LAU YAN YU SHUM KING SUN Slide 3 Today, we are going to explain the most ignored but serious global environmental problem…

Documents Global warming

4A LAU SIN YIN 4B CHOW HAU YI 4D LAU YAN YU SHUM KING SUN Today, we are going to explain the most ignored but serious global environmental problem – Global warming. Environmental…