Chapter 9 Plate Tectonics Question Preview (ID: 45477)


Review For Chapter 9. TEACHERS: click here for quick copy question ID numbers.

What do bands of rock alternating magnetic orientation indicate?
a) reversed itself in the past
b) weakened
c) become stronger
d) remained the same

Continental drift was not widely accepted when it was first proposed because____?
a) Continental landmasses were too big to move
b) Mantle convection currents weren't in motion at that time
c) magnetic and sonar data proved that Wegener's hypothesis was incorrect
d) Wegener couldn't explain the how or why continents formed

Many early mapmakers thought earths continents had moved based on_______
a) Fossil evidence
b) climatic data
c) plate boundary locations
d) matching coastlines

Wegener believe the continents were assembled as part of a supercontinent______years ago
a) 250
b) 400
c) 300
d) 500

Continental drift states that continents have moved_____to their current locations
a) Vertically
b) very little
c) slowly
d) quickly

The_____beneath continents and the seafloor is made of molten rock
a) Lithosphere
b) mantle
c) continents
d) plate tectonics

The crust and upper mantle make up the _____
a) lithosphere
b) asthenosphere
c) hydrsosphere
d) outer core

plates collide together at____?
a) divergent plate boundaries
b) convergent plate boundaries
c) transform plate boundaries
d) subduction zones

Earth's plasticlike layer
a) Lithosphere
b) Mid-Ocean Ridge
c) asthenosphere
d) subduction zone

The main points of evidence for_____are fossils, rocks, and climate
a) continental drift
b) sea-floor spreading
c) mid0ocean ridge
d) Plate Tectonics

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