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:
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
A joint is a fracture or crack in bedrock along which displacement has taken place.
Answer the following statement true (T) or false (F)