The magma that erupts from the divergent boundary of the Mid-Atlantic ridge produces ____
a. ?thin basalt lava flows
b. ?thin rhyolite lava flows
c. ?andesite volcanoes
d. ?peridotite shield volcanoes
e. ?peridotite lava flows
ANSWER: a
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Which of the following patterns refers to a quasi-biennial oscillation?
A. reversal of stratospheric winds above the tropics B. 2 million-year cycle of ice advances and retreats C. cycle of increase and decrease in carbon dioxide concentrations D. 22-year cycle of sunspots
Station #3:
A joint is a fracture or crack in bedrock along which displacement has taken place.
Answer the following statement true (T) or false (F)
The surface of the Earth can be divided into land (30%) and ocean (70%). The deepest point on the ocean floor is the Challenger Deep, and the highest point on land is Mt. Everest.
a. true b. false