Which of the following is an example of the greatest cause of biodiversity loss in the world today?
A) In the United States, the Army Corps of Engineers reroutes major rivers to improve the waterways for commercial navigation.
B) In Brazil, ranchers cut and burn rain forest to clear fields for grazing cattle.
C) In the United States, large fields once used to plant corn and soybeans are being converted for housing developments and commercial properties.
D) In northern Canada, native people continue to hunt seals and harvest fish from arctic seas.
B
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Who is the largest supplier of petroleum to the United States?
A) Saudi Arabia B) Canada C) Venezuela D) Kuwait E) Nigeria
A horst is...
a.) a downdropped block bounded by two normal faults b.) a downdropped block bounded by two reverse faults c.) an uplifted block bounded by two normal faults d.) an uplifted block bounded by two reverse faults
How could one test if calcite is the mineral that cements together loose grains of sandstone?
A) If it is extremely strong then it is calcite. B) If it does not react with dilute acid, then it is calcite. C) If it does react with dilute acid, then it is calcite. D) If you lick it and it falls apart, then it is calcite.
Discuss the composition and characteristics of Earth's layers. How was the composition of the mantle and core determined?