OCE 1001

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Characteristics of passive continental margins include which of the following? Deep-sea trenches Broad continental shelves Thin sediment accumulation Volcanic and earthquake activity Chains of islands

Broad continental shelves

Which of the following features are found at an oceanic-continental convergent plate boundary? mid-ocean ridge continental arc mountains trench island arc

Continental arc, mountains, trench

Where does the deep-ocean basin begin along a passive continental margin? Continental slope Continental rise Abyssal plain Shoreline Continental shelf

continental slope

Trenches are typically associated with ________. convergent continental margins passive continental margins fracture zones abyssal hills transform continental margins

convergent continental margins

Which statements below correctly describe differences between oceanic and continental crust? -Continental crust is mainly composed of granite, whereas oceanic crust is mainly composed of basalt. -Oceanic crust is less dense than continental crust. -Continental crust floats higher on the mantle than oceanic crust. -Continental crust is dark in color, whereas oceanic crust is light in color. -Continental crust is thicker than oceanic crust.

-Continental crust is mainly composed of granite, whereas oceanic crust is mainly composed of basalt -continental crust floats higher on the mantle than oceanic crust -continental crust is thicker than oceanic crust

Of the following statements about nemataths and volcanic arcs, which is/are true? Choose all that apply. -Volcanic arcs are associated with convergent plate boundaries. -Volcanic arcs are created at hotspots. -In a volcanic arc, any of the volcanoes can be active at any time. -The age of the volcanoes progressively decreases as you move from one end of a volcanic arc to the other. -Nemataths and volcanic arcs are both the result of volcanic activity.

-Volcanic arcs are associated with convergent plate boundaries -in a volcanic arc, any of the volcanoes can be active at any time -nemataths and volcanic arcs are both the result of volcanic activity

Why is the average depth of the ocean much greater than the average height of land? Continental crust is thinner than oceanic crust. Oceanic crust is more dense than continental crust. More erosion happens on land than in the ocean. Oceanic crust is cooler than continental crust. Continental crust is less buoyant than oceanic crust.

oceanic crust is more dense than continental crust


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