Plate Tectonics Challenge2

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Test your knowledge of plate tectonics.

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Ena Garaycoa

Ecuador

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Plate Tectonics Challenge2


Plate Tectonics Challenge2Version en ligne Test your knowledge of plate tectonics. par Ena Garaycoa 1 What evidence supports continental drift? a Similar fossils on different continents b Continents have never moved c Diverse fossils found only on one continent d Sea levels have always stayed the same 2 What is Pangaea? a A type of fossil b A supercontinent that existed about 245 million years ago c An ocean d A mountain range 3 What process explains the movement of continents? a Floating on wind currents b Tidal forces c Plate tectonics d Continental drift alone 4 What are the three main types of plate boundaries? a Inward, outward, sideways b Direct, oblique, lateral c Active, passive, boundary d Divergent, convergent, transform 5 What happens at divergent boundaries? a Two plates collide head-on b Rocks melt due to gravity c Two plates move apart, creating new crust d One plate sinks beneath another 6 What is subduction? a A collision that only builds mountains b Two plates slide past each other without interaction c A denser plate sinks into the mantle d Formation of new continents at trenches 7 Which mechanism drives plate movement due to mantle convection? a Mantle convection b Solar wind c Moon gravity d Ocean tides 8 What is sea-floor spreading? a Continents drift due to winds b Old crust is destroyed at trenches c Rivers shape underwater mountains d New oceanic crust forms at mid-ocean ridges 9 What are mid-ocean ridges? a Above-water mountain ranges b Desert plateaus under water c Underwater mountain ranges where new crust forms d Underwater rivers 10 Which event helped form the Himalayas? a South America with Africa b Collision of India with Eurasia c India with Africa d Australia with Antarctica 11 What evidence did Wegener cite for continental drift? a Continents never moved. b Identical fossils on now-separated continents. c Rising sea levels pulled continents apart. d Volcanoes formed all continents. 12 What is Pangaea? a A mythical landmass. b A chain of mountains. c A supercontinent that joined all landmasses about 245 million years ago. d A large ocean. 13 About 200 million years ago, what happened to Pangaea? a It began to break into Laurasia and Gondwana. b New continents formed from dust. c It stayed intact. d It became a single ocean. 14 What discovery in the mid-1900s led to plate tectonics? a Volcanoes moved continents. b Mapping the seafloor revealed mid-ocean ridges. c Desert climates altered plates. d Moon rocks. 15 What are mid-ocean ridges? a Underwater mountain ranges along cracks in the crust. b Underwater canyons. c Flat sea floor. d Deep ocean trenches. 16 What pattern do sea-floor rocks show about age? a Age is uniform. b Youngest rocks are near the ridge; oldest are farther away. c Rocks get younger toward center. d Oldest near the ridge. 17 What is sea-floor spreading? a Crust shrinks. b Rocks melt only on continents. c Rising mantle forms new crust at ridges; the crust spreads apart. d Oceans disappear. 18 Why isn't Earth getting larger despite sea-floor spreading? a Old crust sinks in trenches at the same rate new crust forms. b Continents grow upward. c Ridges stop forming. d Rocks vanish. 19 What is plate tectonics? a Large-scale movements of Earth's lithosphere. b Movement of the core. c Movement of only the atmosphere. d Rivers reshaping continents. 20 What is a tectonic plate? a A mountain range. b A giant ocean. c A section of the lithosphere that moves on the asthenosphere. d A layer of the ocean. 21 What are the three types of plate boundaries? a Collision, smoothing, friction. b Divergent, convergent, transform. c Horizontal, vertical, diagonal. d Ridge, trench, valley. 22 What happens at divergent boundaries? a One plate sinks beneath another. b Rocks melt to lava at surface. c Two plates collide. d Two plates move apart; new crust forms. 23 What happens at convergent boundaries? a Two plates collide. b Two plates move apart. c Ridges form. d One plate slides past another. 24 Which mountains began forming when India collided with Eurasia? a The Alps. b The Appalachians. c The Himalayas. d The Andes. 25 What is subduction? a Continents slide over oceans. b Ridges rise upward. c Mantle convection stops. d Dense oceanic crust sinks beneath a less dense plate. 26 What drives plate motion in mantle convection? a Wind forces. b Heat-driven rising and sinking of mantle due to density. c Moon gravity. d Solar radiation. 27 What is ridge push? a Subduction pulls plates toward ridges. b Ridges stop plate movement. c Newly formed rock at a ridge rests higher and slides down. d Ridges pull plates upward. 28 What is slab pull? a Mantle stops moving. b Ridges pull plates toward the ocean. c The sinking of a dense plate at subduction zones pulls the rest. d Ocean currents push plates. 29 What evidence do magnetic patterns on sea-floor rocks provide? a Constant polarity. b No relation to plate motion. c Rocks never move. d Record of Earth's magnetic reversals. 30 Approximately when did Pangaea begin to break apart? a About 2 billion years ago. b About 200 million years ago. c About 50 million years ago. d About 1 million years ago.

Plate Tectonics Challenge2

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Créé par

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Plate Tectonics Challenge2Version en ligne

par Ena Garaycoa

What evidence supports continental drift?

What is Pangaea?

What process explains the movement of continents?

What are the three main types of plate boundaries?

What happens at divergent boundaries?

What is subduction?

Which mechanism drives plate movement due to mantle convection?

What is sea-floor spreading?

What are mid-ocean ridges?

Which event helped form the Himalayas?

What evidence did Wegener cite for continental drift?

What is Pangaea?

About 200 million years ago, what happened to Pangaea?

What discovery in the mid-1900s led to plate tectonics?

What are mid-ocean ridges?

What pattern do sea-floor rocks show about age?

What is sea-floor spreading?

Why isn't Earth getting larger despite sea-floor spreading?

What is plate tectonics?

What is a tectonic plate?

What are the three types of plate boundaries?

What happens at divergent boundaries?

What happens at convergent boundaries?

Which mountains began forming when India collided with Eurasia?

What is subduction?

What drives plate motion in mantle convection?

What is ridge push?

What is slab pull?

What evidence do magnetic patterns on sea-floor rocks provide?

Approximately when did Pangaea begin to break apart?