Question 32. According to paragraph 1, how are diseases a natural part of life on Earth? A. They prevent pandemics. C. They led the world grow quickly. B. They help control the population. D. They kill too many people. Question 33. Based on the information in the passage the term "pandemics" can be explained as A. diseases with no cure B. a deadly kind of flu C. diseases that spread quickly and kill large numbers of people D. new disease like SARS or the Marburg virus Question 34. According to the passage, what causes pandemics? A. Changes in a disease that body cannot fight B. Careless doctors who do not watch the spread of disease C. Population growth that the world cannot support D. The failure to make new medicines