Back to the full dot-point answer
SingaporeGeographyQuick questions
Plate Tectonics
Quick questions on Theory of plate tectonics explained: O-Level Geography
5short 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 the theory in brief?Show answer
The theory of plate tectonics states that the Earth's lithosphere (its rigid outer shell) is broken into large slabs called tectonic plates. These plates move slowly, a few centimetres a year, carrying the continents and oceans with them. Where plates meet, at plate boundaries, they interact, producing earthquakes, volcanoes and mountain ranges.
What is the evidence?Show answer
Several independent lines of evidence support the theory:
What is q1?Show answer
State what the theory of plate tectonics says about the Earth's outer shell. [2 marks]
What is q2?Show answer
Explain the role of convection currents in moving the plates. [3 marks]
What is q3?Show answer
Describe one piece of evidence that the continents were once joined. [2 marks]
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.