Air pollution is a problem the United Kingdom has been facing for a long time. It brings about many health diseases such as strokes, asthma, and lung cancer among others. Air pollution is being measured and regulated constantly in order to meet the air quality targets. The UK's government is taking measures to improve pollution due to traffic, it is also constraining the use of coal in electrical power generation and it estimates that by 2040 the fossil fuel cars will be banned.
The answer is B, to maintain law and order in a country
Since you provide no options, Government outside source revenue come from everywhere else beside their own initial internal budget.
The biggest outside revenue from the government came from company's and individual taxes. Government usually has their own department to collect such outside revenues<span />