Acid ran leads to fish mortality. Many species of fish cannot survive in aquatic environme
What potential remedies exist for the acid rain 【C6】______? The experts disagree. Some say new environmental laws should be 【C7】______ to control the emission of pollutants in the atmosphere. Some say that if we had known how serious acid rain was, we would have planned 【C8】______ to prevent it. 【C9】______, all agree that if the consumption of fossil fuel were reduced, we would have less of a problem. Another 【C10】______ is that special scrubbers could be installed in smokestacks to remove a good 【C11】______ of the pollutants before they get into the atmosphere. Other ideas even include breeding more 【C12】______ fish. And research suggests that spreading lime into lakes may be effective in 【C13】______ acidity. In conclusion, it is clear that if we truly want to reduce the impact of acid rain, a 【C14】______ of remedies and international cooperation must be explored. It is a sad fact that acid rain probably could have been avoided if we 【C15】______ what we know now.
【C1】______
A.Likewise
B.Besides
C.Thus
D.Otherwise