Question

At the current rate of growth, human population doubles every

• A. 33 years
• B. 45 years
• C. 20 years
• D. 60 years

Answer 1

The correct option is A 33 years

The rapid increase in the human population is the major threat for the progress of the country. Rough estimates of population growth rates are derived from the doubling time interval estimates. The simplest mathematical answer is 6.0 x 10^9 = 2^x where x is the number of doublings. x= In 6.0 x 10^9 / In 2 = 22.515 / 0.693 = 32.4892 or 33 approx.

Therefore, the correct answer is option A.