Geologists can accurately predict when an earthquake will occur.

Based on the seismograms below, which recording station would have been the furthest from the epicenter of a hypothetical earthquake?  

Which of the following mechanisms used to explain the motion of the tectonic plates is our best means of modeling the movement of the plates?

Volcanoes with violent volcanic eruptions that produce pyroclastic flows are fed by magma with a very low viscosity.

Which of the following gases was essentially missing from Earth’s early atmosphere (i.e. the atmosphere supplied from volcanic emissions)?

You measure the amount of carbon-14 (the parent isotope) and nitrogen-14 (the daughter isotope) in a sample of bone and determine that 0.75 half-lives have elapsed for carbon-14. What is the age of the bone sample if carbon-14 has a half-life of 5,730 years?

________ occurs from the overuse of groundwater and results in the lowing of the surface elevation as the underlying sediments compact, reducing the porosity of the sediments.

Which of the following is an example of a biochemical sedimentary rock?

Based on the cross-section shown below, what can be said about layer D?

All carbon atoms have the same number of neutrons.