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WalesGeologyQuick questions
Geological Themes: Optional (T3, T4, T5)
Quick questions on Geology of the lithosphere (option T5) - WJEC A-Level Geology
4short 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 geophysical evidence for the interior?Show answer
The interior is investigated by seismology (P and S wave speeds, the shadow zone and the failure of S waves through the liquid outer core reveal the layers and their depths), gravity surveys (density variations and anomalies), magnetic surveys (rock magnetisation, including the ocean-floor stripes) and heat flow (higher at ridges, lower over old crust).
What is q1?Show answer
Distinguish the lithosphere from the asthenosphere. [2 marks]
What is q2?Show answer
State two differences between oceanic and continental crust. [2 marks]
What is q3?Show answer
Explain why parts of Scotland are still rising today. [2 marks]
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