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AICE Marine Test - Topic 2 Questions and Answers
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AICE Marine Test - Topic 2 Questions and Answers
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AICE Marine Test - Topic 2 Questionsand Answers
Crust - Answer -Earth's outermost layer
Contains: older thicker continental crust, newer denser oceanic crust
Mantle - Answer -The layer of hot, solid material between Earth's crust and
core(magma and minerals)
Core - Answer -the center of the earth and is made up of iron and nickel
Continental crust - Answer -relatively thick part of the earth's crust that forms the
large landmasses
Oceanic crust - Answer -relatively thin part of the earth's crust which underlies
the ocean basins
Theory of Plate Tectonics - Answer -Harry Hess
- used sonar to scan the bottom of the ocean while stationed on a submarine
-identifies the presence of mid-ocean ridges
-not accepted until confirmed by magnetic striping
- explains major landforms are created by Earth's subterranean movements
, Evidence for the theory of plate tectonics - Answer -fossil distribution, rock
formation, puzzle fit of continents, seafloor spreading, paleomagnetic stripes
Divergent boundary - Answer -plates separate(move opposite directions) due to
convection currents in the mantle
CREATES: mid-ocean ridges, hydrothermal vents, earthquakes
Convergent boundary - Answer -plates move towards each other (one moves
underneath)
CREATES: trenches, turbidity, tsunamis
Transform boundary - Answer -plates slide past each other
CREATES: earthquakes, fault lines
Hydrothermal vent - Answer -the result of cold seawater flowing into fissures of
the oceanic crust in the vicinity of subduction zones where water is heated up by
magma at extreme temps.
Hydrothermal vent plume - Answer -water that is under pressure coming from
hydrothermal vents, w hot and rich dissolved nutrients begin to arise from the
vents and forms this structure
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