Mountain building in western North America did not begin until the Late Cretaceous Period. Indicate whether the statement is true or false
F
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Which of the following features is associated with a subduction zone?
a) mid-ocean ridge b) linear island chain c) rain forests d) deep trenches
High islands are typically more prosperous than low islands because they have richer soils
a. True b. False Indicate whether the statement is true or false
The white granite of the Idaho Batholith near Boise, Idaho, contains dark gray xenoliths of metamorphic material. Which is older? How do you know?
A) Granite; the principle of superposition B) Xenoliths; the principle of cross-cutting relations C) Granite; the principle of unconformities D) Xenoliths; the principle of inclusions
Fishing down the food chain refers to
A. the practice of line fishing where only mature adult fish are harvested. B. using trawlers with large nets to harvest marine resources. C. the practice of fishing top predators nearly to extinction then moving on to smaller, less desirable fish. D. the practice of fishing down at the bottom of the food chain.