Question

Identify the best topic sentence for the following paragraph:
Thousands of people are born each day. The population of the world has already exceeded seven
billion. If the present growth rate remains unchecked, the world may soon face wide-spread
starvation, poverty, and serious health problems.
-------------------------------------(topic sentence).
A. It is, therefore, predicted that most of the world’s population will suffer from serious health
problems in the near future.
B. One of the most serious issues is the population boom in third world countries.
C. The exponentially rising world population is the most important issue the world needs to address.
D. We need to take active steps to curb the rising population.

Answer 1

Hint: Population is the total number of humans currently living in the county. According to the statistics, today's population has become a big problem for scarcity of water, energy, food, open space etc. Due to which, in near future, it will give rise to many issues.

Complete answer:
The population of our country is rising rapidly and is giving birth to numerous issues. The two main causes reported for this escalation is: a) the birth rate is higher than the death rate and b) the fertility rate has been falling. And, this constant population growth can only be tackled if the policy makers take active steps to manage this serious issue.
Let us examine the given options to find the correct option
Option A talks about only health issues, whereas if the population issue is not addressed at the right moment, it will not only affect health but many other major things. Therefore, Option A is not correct. Option B, talks about the boom in the third world countries, which is again the sub part of issues. Therefore, it is not a correct option. Option C, talks about how critical is the issue of population growth and it is important to address it timely. Therefore, the correct topic statement for the above paragraph would be, ‘The exponentially rising world population is the most important issue the world needs to address’. Option D, is an incorrect option as it only talks about the solutions.

Therefore, the correct option is Option C.

Note: The intentions should be clear without stating any explicitly because the topic sentence states a clear direction that you would be elaborating in the paragraph.