Air Pollution

1. What lead to air pollution?
natural events and human activicities
-natural events :volcanic eruption
-human activicity:urban and industrail activities shifting cultivation and
transport

2. How does air pollution affect us?
harm our health, make us respiratory diseases

3. How to solve the problem of air pollution?
-Unleaded petrol is used instead and not use the leaded petrol
-set the law
-plants more trees
-use the pubilc transport and reduce use the car

4. What should we do?
-use the pubilc transport and reduce use the car
or walk instead the car

你用英文,咁我都用英文,對不對?

2008-11-24 20:44:48 補充：
第一個答,呵呵!!!XD