What is the Giant's Causeway made of?
Answer and explanation
Correct answer: A. Interlocking basalt columns formed by volcanic activity on the County Antrim coast
- Step 1: The Causeway is a World Heritage Site in Northern Ireland. Step 2. Its columns are basalt, formed from cooling lava about 60 million years ago. Answer: basalt columns. Why not the others: limestone, granite and sandstone are other rocks in other places.
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