Earth’s magnetic field is generated by the ________.

Olympus Mons, the largest known volcano in our Solar System, is found on ________.

Under the theory of plate tectonics, the plates themselves are ________.

The elevation of the water table ________.

How are greenhouse gases like carbon dioxide and methane different from other atmospheric gases like nitrogen and oxygen?

Braided streams ________.

Cemented shells of marine organisms form which kind of sedimentary rock?

Which geological setting would you NOT expect to produce a large amount seismic activity?

Which of the following common minerals is softest?

Deep-oceanic trenches are features of ________ plate boundaries.