Flashcards in Exam One Deck (10):
The mantle is composed of a dense rock rich in iron and magnesium, but relatively low in silica content is_______.
Earth's lithosphere consist of _____, and ________
Crust and solid upper mantle
Which of the following are all major lithospheric plates?
South American, Antarctic, Pacific, Auntralian-Indian, and African.
Mantle rocks near Earth's surface change from a plastic to a molten liquid (magma) state because of
Decompression melting as pressure decreases
______ is a small area which may preserve one or a few unique resources (e.g Civil War Battlefield)
________ an area of undeveloped Federal Land retaining in primeval character and influence without permanent improvements or human habitation
_____ is an area having great scenic and scientific importance, but in which Congress has permitted continued hunting, trapping, oil/gas exploration and extraction
_______ was the first U.S national park, established in 1872 by an act of Congress.
Yellowstone National Park
______ is an area, set aside by an act of Congress, having great scenic and scientific importance, without boundaries that provide for enough land and water to protect the resources.