6. There was an earthquake in San Francisco April 18, 1906. More recently there was another earthquake in Columbia June 27, 2014. Earthquakes are measured using the associated amplitude on the Richter scale. Let be the amplitude for the San Francisco earthquake and be the amplitude for the Columbian earthquake. San Francisco earthquake equations is below: Columbia earthquake equations is below: a. Use the properties of logs to determine how many more times severe was the San Francisco earthquake

What is one reason why areas that are just beginning to industrialize typically have a higher rate of population growth than countries that are already industrialized? a. most industrialized countries have laws regulating how many children women can have. b. the average lifespan in developing countries is much higher than in industrialized countries. c. developing countries need labor to fill their rapidly expanding industries. d. developing countries are just beginning to experience improved food production and health services.