Extracted text: 8. Which statement below best characterizes the thermohaline crculation model? a. Cold fresh water from the poles flows on the surface to the equator b. Salty water at the equator cools on the surface and sinks vertically to the ocean floor C. An Influx of fresh water Into the oceans could Increase the circulation d. Water temperature and density differences drive the clrculatlon model 9. if the overburden denslty Is 2300 kg/m estimate the effectIve stress at 4 km depth? 58.86MPA b. 41.16 MPa c. 7398.7 psl d.-3763.2 pst 10. The statistical relationship between the magnitude and frequency of geologic events Is a. Inversely proportional b. directly proportlonal unpredictable 4nversely proportional, but only at low magnitudes C. 11 With respect to the glant plenets, the terrestrial planets; are rich In fron and.magneslum and poor in volatiles are ooor In Iron and magneslum and rich In volatiles 3.