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WAEarth and Environmental ScienceQuick questions
Unit 4: Earth hazards and climate change
Quick questions on Climate proxies: ice cores and isotopes: WACE Year 12 Earth and Environmental Science
2short 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 are ice cores?Show answer
Ice sheets in Antarctica and Greenland build up year by year, so deep cores drilled through them read back through time.
What are oxygen isotopes?Show answer
Oxygen comes in a lighter and a heavier form, and the ratio between them in ice and in the shells of marine organisms depends on temperature and ice volume.
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