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All the water in rivers and streams arrives directly from rainfall runoff.

 Describe the difference between regional and contact metamorphism. Include in your answer both tectonic cause and any differences in the resulting textures.

Briefly compare and contrast anticlines and synclines.What do they have in common? What sets them apart as different?

A cone of depression forms when _______________.

Match the aspect of sedimentary texture below with its significance (interpretation).

Obsidian ____________.

Which of the following is NOT an example of mechanical weathering?

In May of 2018, Kilauea volcano on Hawaii began a new eruption in the Leilani Estates neighborhood. Here’s a view of the eruption from a drone hovering about 150 above it: What kind of eruption was this?

An explosive lava is likely to be rich in which of the following ingredients? (Mark ALL that apply)

Both quartz and obsidian display _________ fracture.