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Plate Tectonics
Quick questions on Convergent plate boundaries explained: O-Level Geography
6short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is oceanic meets continental?Show answer
Where an oceanic plate meets a continental plate, they move toward each other. Because oceanic crust is denser, it is forced down beneath the lighter continental crust, a process called subduction:
What is oceanic meets oceanic?Show answer
Where two oceanic plates meet, the denser (usually older) one subducts beneath the other. The rising magma forms a curved chain of volcanic islands (an island arc), and earthquakes are common.
What is continental meets continental?Show answer
Where two continental plates collide, neither is dense enough to subduct easily. Instead, the crust between them is squeezed and buckled upward, crumpling into high fold mountains. There is little volcanic activity, but powerful earthquakes occur as the plates push against each other.
What is q1?Show answer
Explain what subduction is. [2 marks]
What is q2?Show answer
Explain why volcanic eruptions at convergent boundaries are often violent. [2 marks]
What is q3?Show answer
Describe what happens where two continental plates collide. [2 marks]
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