Which statement best describes expectations for the world’s human population by the year 2015?
a) It will exceed 10 billion if the current rate of increase continues. b) Negative growth in the United States and Europe will counterbalance positive growth in the developing countries. c) It will exceed 7.5 billion if the current rate of increase continues. d) It will drop below 6 billion if the current rate of decrease continues. e) The problem is too complex to make any predictions
