The Graph Below Shows Estimated World Population for the Period $4000 \mathrm { BC } - 2000 \mathrm { AD }$

Multiple Choice

The graph below shows estimated world population for the period $4000 \mathrm { BC } - 2000 \mathrm { AD }$ . Note that the logarithm of the world population and not actual population is plotted on the vertical axis. This means, for example, that when the graph reaches 7 on the vertical scale, world population is $10 ^ { 7 }$ and when the graph reaches 9 on the vertical scale, world population is $10 ^ { 9 }$ . Use the graph to answer the question.
-How does world population in the year 1000 AD compare with world population in the year 2000 BC?

A) The 1000 AD population is roughly one million larger than the 2000 BC population.
B) The 1000 AD population is roughly 14% larger than the 2000 BC population.
C) The 1000 AD population is roughly ten million larger than the 2000 BC population.
D) The 1000 AD population is roughly ten times as large as the 2000 BC population.