It think it is C because it was something very difficult to battle :)
Answer:
One positive is having uniformity throughout the entire country. The central government in charge of everyone there gives a sense of unity in the country. One negative is having unequal representation throughout the country if there are more than ethnicity or religion.
Answer:
<em>The greatest accomplishment of Peel's ministry was the establishment of the principle of free trade</em>
The answer would be, A. It absorbs organic materials in the environment.
Hope it helps.
An end to world wars, and the league of nations