Protection of the Environment
Ted is fishing with his father
A:What's that thick black foam on the river?
B:That's the waste from some factories.
A:But it's forbidden to let waste into the river directly.
B:Of course. But some factories just don't obey the law.
A:Why do they run such a risk?
B:The factories can save a lot of money by that.
A:But the river is polluted?
B:Not only the rivers, but also the air and the soil.
A:The air is also polluted?
B:Don't you see so many people cough day and night? Don't your eyes water when you are near the factory?
A:Yes, they do. I just don't know why?
B:Because there is too much sulfur dioxide in the air.
A:What should we do?
B:Perhaps next time when we come fishing, we need some masks.