Sedimentary rocks that contain a significant amount of igneous material and outcrop in mountain belts suggest formation ________.
A. in the Precambrian
B. along an active continental margin
C. along a passive continental margin
D. on the deep ocean floor
E. near a hot spot
Answer: B
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How might hydrothermal ore genesis occur?
A) Hot seawater rushes through porous rocks and crystallizes on contact with the rocks. B) Cold seawater meets hot circulating hydrothermal fluids and precipitation occurs. C) Two rock masses meet at a hydrothermal vent and the heat of the water dissolves ions from both masses. They recrystallize when they are carried to cooler water. D) Hot water from a hydrothermal vent dissolves ions from one rock mass and reprecipitates them as ore in cooler water.
The term lava is used to refer to molten rock that makes its way onto Earth's surface environment.
Answer the following statement true (T) or false (F)
What allows water to be a polar molecule?
A) Hydrogen bonds B) Adhesion C) Surface tension D) The angular shape of the molecule
Which of the following processes removes carbon dioxide from the atmosphere?
A. burning fossil fuels B. lightning C. deforestation D. photosynthesis