<u>Explanation:</u>
Doing so allowed him to use the third person form of expression. This form of expression involves narrating events or actions from the eye or viewpoint of another person (the third person).
For example, expressions such as 'they', 'she', 'them', etc are used.
This helps him to get his point across as his audience
It was "Mikhail Gorbachev" who was <span>known as a reformer and initiated radical new reform policies, setting the stage for the dissolution of the Soviet Union. </span>
A choropleth map (from Greek χῶρος "area/region" and πλῆθος "multitude") is a type of thematic map in which areas are shaded or patterned in proportion to a statistical variable that represents an aggregate summary of a geographic characteristic within each area, such as population density or per-capita income.
Since the end of World War II (1945), it is that "<span>(4) Suburban areas have grown faster than cities" that has</span> <span>been a major effect of population change in the
United States.</span>