About how many more times more energy would an earthquake measuring 9.0 on the Richter scale release than an earthquake measuring 5.0? A. 40 B. 10,000 C. 31,600 D. 1,000,000 E. 40,000,000

In a 2010 article “fact check: eastern u.s. earthquake risk” by chris mould, the author provides as evidence the following statement by the united states geological survey: “although earthquakes may be less frequent in the eastern u.s., … urban areas in the east could face bigger losses because the shaking would affect much larger areas than similar quakes in the west. in addition, most homes and buildings in the east are not designed to withstand earthquakes.”this statement directly relates to which of the following concepts? a. vulnerabilityb. hazardc. riskd. severity

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

Scientists think that convection currents flow in earth’s a. continents. b. mantle. c. lithosphere. d. inner core.