Look at the picture “Pollution Identification.” Based on the picture, what are the sources of air pollution shown by numbers 1, 2, and 3 in order?, Smoke from burning trash, cigarette smoke, and road dust., Car exhaust fumes, satay/BBQ fumes, and factory chimney fumes., Noise pollution from car horns, water pollution in gutters, and soil pollution., Oxygen from trees, a gentle breeze, and steam from hot water.

CHAPTER 3

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?