What conditions during the formation of coal may increase its quality for industrial use?
A) Very high heat and pressure are applied.
B) Clay and silt wash periodically through the swamp that formed the coal.
C) The swamp that formed the coal floods.
D) The coal is formed of mostly green plants and contains very few woody trees.
Answer: A
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Urbanization is ________
A) settlements that support societies with governments, public buildings, laws, and taxes B) cities that serve as centers of commerce and governance of humans C) growth of populations in rural communities with the focus on growing your own food and supporting less technological advancements D) the centralization of human populations living in densely populated cities E) the development of technologies, market economies, and social and government structures
What principle(s) would you use to determine the relative ages of a granitic intrusion if there are granite pebbles in the sedimentary rock overlying the granite? Why?
What will be an ideal response?
Most desert streams ____
a. are ephemeral b. are perennial c. meander d. reach ultimate base level
The Older Dryas and Younger Dryas stages represented ________.
A. two cooling stages during warm-up from the last major glacial advance B. periods of dry climate in the last 20,000 years C. two of the more abrupt warming stages during the last glaciation D. one warming stage and one cooling stage during the last glaciation