The majority of methane hydrates are found along the eastern margin of North America
a. True
b. False
True
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How do deep-ocean trenches form?
A) Magma from a partially melting tectonic plate makes its way through the crust. B) Subducting lithosphere descends into the mantle. C) Two tectonic plates diverge and create a rift valley. D) Sediments from a turbidity current settle out in a deep ocean basin.
Compare economic and ecological approaches to valuation of the environment
What will be an ideal response?
Advection fog is often observed along the Pacific coast during summer as westerly winds carry moist air toward the shore. Which of the following describes why this fog forms?
A. The surface water near the coast is slightly colder than the surface water farther offshore. B. The surface water near the coast is slightly warmer than the surface water farther offshore. C. The surface water near the coast is much warmer than the surface water farther offshore. D. The surface water near the coast is much colder than the surface water farther offshore.
What happens to winter temperatures in the northern hemisphere if tilt angle decreases to 22 degrees?
A. stay the same B. warmer C. colder