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________ 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.

___________ is molten rock erupted from volcanoes.

Which of the following is the densest?

Which of the following rocks is formed from sediments with the smallest grain size?

Which of the following best describes our understanding of how the major features on Earth’s surface such as mountains, trenches, and volcanoes form?

Which of the following two planets are most similar to Earth in terms of size and density?

Imagine that you are an astronomer and notice that the light from a distant galaxy is shifted toward the blue end of the electromagnetic spectrum. What conclusion would you draw?

Mammals evolved before amphibians.

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

What type of depositional feature is conical, with a fan-shaped structure and forms at the base of a mountain front where a stream discharges onto a relatively flat plain?