Question

The chart documents world human population growth over the last 2000 years. Line A represents actual human population growth during this time period. Line K represents the earth’s carrying capacity for human population (the maximum population that can be sustained with present resources). Which of these is a possible explanation for why line A is above line K?

Answer 1

The answer is C) The discovery of penicillin before World War II now allows the cure of many common bacterial infections that were not previously treatable.

Step-by-step explanation:

The discovery of penicillin before World War II now allows the cure of many common bacterial infections that were not previously treatable. Previously, this would have resulted in many deaths. While K may oscillate somewhat, it is not likely that Earth, being a closed system, would have had a dramatically different K in recorded human history, or the population would have reflected this.

Answer 2

The discovery of penicillin before World War II now allows the cure of many common bacterial infections that were not previously treatable.