There are six billion people in our world and the number is getting larger. The improvement of living conditions has led to the rapid growth of the world population. Particularly in the countryside, people tend to have larger families. Some governments control the population through taxes. It is sometimes necessary and right for a government to control the population in this way. Our living resource is limit. So we can not make the population out of our control. We can stop someone to have more babies through taxes and leave more resources to the people who need it more.
So Some governments control the population through taxes. (It's better to use so in the middle of a sentence, not the beginning.)
In this paper, we will demonstrate the necessity to control the population and how to use the taxes to control the population in detail. (Instead of "show" it's better to say "demonstrate" in this context. Also, since "demonstration" itself means showing something in detail, you don't need to say "in detail." at the end anymore.)
I never realized that the government in some areas controls the population through taxes, but it makes perfect sense in more populated areas and an increased need for better living conditions.
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