It was about seven billion
this is according to the United States Census Bureau, which argued that the world was seven billion as in March 2012. The United Nations on the other hand asserts that, however, the world population reached the seven billion mark in 2011. Currently the population stands at 7.6 billion.
Answer:
Explanation:
St. Petersburg has a major port that is necessary to expansion for Russia.
St. Petersburg ceased being the capital in 1918 after the Russian Revolution of 1917.It became capital of the Russian Empire for more than two hundred years
