Over extended periods of time, population growth a. has uncertain effects on the standard of living. b. has no effect on the standard of living. c. clearly lowers the standard of living. d. clearly raises the standard of living.

Over extended periods of time, population growth has uncertain effects on the standard of living.

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.