Matching:
                               A                                                                                     B
1.If people keep dumping rubbish into the lake,               a, the groundwater will be poisoned.
2. If the farmers overruse pesticide,                                 b, if our surrounding enviroment is polluted.
3. Soil erosion won't happen in an area,                          c, they will disappear in the future. 
4. If we don't converse the rainforests,                            d, unless we join hands to protect it.
5. Our health will be badly affected                                  e, the aquatic life will be afflicted.
6.Our environment will be damaged                                f, floods will bemore and more severs. 
7.Is we don't protect the frontier forests,                         g, is people use more public transportation.
8. The amount of carbon dioxide in the atmosphere will be reduces       h, if people practice sustainable agricultural mad use .