The Earth's magnetic field is generated by
A. salty water moving through the deep parts of the crust.
B. movement of iron and electrical currents within Earth's outer core.
C. aligned magnetic minerals within Earth's inner core.
D. convection currents in the asthenosphere.
Answer: B
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The location of the world's major forest biomes is in areas where the climate
A) is relatively dry and is bordered by desert biomes. B) provides sufficient rainfall to produce a canopy with at least 10% cover. C) is severely impacted by drought or severe winters. D) is in coastal areas that have hot, tropical environments.
Ground settling from thaws is only found in the area around the Arctic Ocean
a. True b. False
Broken fragments of rock that separate from the original rock mass are called _____
a. geomorphic agents b. hydrolysis c. soliflucts d. clasts e. exogenic
Patterns and concentrations are the same concepts
Indicate whether the statement is true or false.