Overpopulation is an undesirable condition where the number of existing human population exceeds the carrying capacity of Earth. Overpopulation is caused by number of factors. Reduced mortality rate, better medical facilities, depletion of precious resources are few of the causes which results in overpopulation. It is possible for a sparsely populated area to become densely populated if it is not able to sustain life. The effects of overpopulation are quite severe. The first of these is the depletion of resources. The Earth can only produce a limited amount of water and food, which is falling short of the current needs. Most of the environmental damage being seen in the last fifty odd years is because of the growing number of people on the planet. They are cutting down forests, hunting wildlife in a reckless manner, causing pollution and creating a host of problems. Those engaged in talking about overpopulation have noticed that acts of violence and aggression outside of a war zone have increased tremendously while competing for resources. With the overuse of coal, oil and natural gas, it has started producing some serious effects on our environment. Rise in the number of vehicles and industries have badly affected the quality of air. Rise in amount of CO2 emissions leads to global warming. Melting of polar ice caps, changing climate patterns, rise in sea level are few of the consequences that we might we have to face due to environment pollution. Question 21. Which of the following is NOT mentioned as the causes of overpopulation? A. Depletion of precious resources B. Better medical facilities C. The carrying capacity of Earth D. Reduced mortality rate Question 22. According to paragraph 2, what is the reason why violence and aggression have increased remarkably? A. People are struggling for resources. B. People are cutting down forests. C. People are causing pollution. D. People are hunting wildlife in a reckless manner. Question 23. The word "reckless " in paragraph 2 can be best replaced by: A. imperfect B. cautious C. sensible D. irresponsible Question 24. Which of the following does the passage mainly discuss? A. Effects of overpopulation B. Reasons of overpopulation C. Areas of overpopulation D. Periods of overpopulation