Theory of Plate Tectonics Answers

0 verified answers1 views
1
Free Preview

Carlos is looking at a picture of a convergent boundary on which a volcanic arc and a trench are identified. Which type of convergent boundary is Carlos looking at?

A
an oceanic-continental convergent boundary
B
an oceanic-arctic convergent boundary
C
an continental-continental convergent boundary
D
an oceanic-oceanic convergent boundary
2
Free Preview

Identify the large brown tectonic plate and whether it is oceanic or continental. Select all that apply.

Question illustration
A
Eurasian, continental
B
North American, oceanic
C
African, oceanic
D
North American, continental
3

Based upon the mechanics of mantle convection, which feature will most likely be formed at the blue arrow, and through which mechanism?

Question illustration
A
An island arc will be formed by ridge push.
B
A rift valley will be formed by subduction.
C
An ocean trench will be formed by slab pull.
D
A mid-ocean ridge will be formed by ridge push.
4

Marina is creating a flow chart of the mechanics of mantle convection and how it relates to tectonic plate movement. Which words should Marina place in each blank of the flow chart?

Question illustration
A
asthenosphere, ridge push, subduct
B
magma, slab pull, subduct
C
lithosphere, ridge pull, float
D
lithosphere, ridge push, subduct
5

Samuel puts a pot of water on the stove to boil and remembers when his teacher taught the class about convection, which is fluid movement driven by heat. Samuel recalls that convection in the Earth’s mantle involves the movement of

A
water currents.
B
molten materials.
C
tectonic plates.
D
the lithosphere.
6

Where do Earth’s convection currents occur?

A
the lithosphere
B
tectonic plates
C
the asthenosphere
D
the subduction zone

Did you find these answers helpful?