What is occurring in the region around the Chilkat River in Alaska that allows chum salmon to spawn during the winter months?
a. Large mounds of darkened rocks are heated by the sun and keep the river from freezing.
b. A nuclear power plant is generating wastewater heat that prevents the river from freezing.
c. Warm winds and ocean currents from the south keep the river from freezing through most of the winter.
d. Thermal springs heat and break up the ice.
Answer: d. Thermal springs heat and break up the ice.
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The present day spatial distribution of Buddhism is best described as:
A) China, Tibet, Siberia, Korea B) Northern India, China, Southeast Asia C) Southeast Asia, Tibet, China, Mongolia, Japan D) Tibet, India, Middle East, Japan
Which produces more energy, the fissioning of a single uranium nucleus or the fusing of a pair of deuterium nuclei? Why?
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Where does surface runoff from the Appalachian Mountains eventually go?
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Formations consist of rocks that are all the same age
a. True b. False