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NSWEarth and Environmental ScienceQuick questions
Module 7: Climate Science
Quick questions on Earth's energy budget and past climates: HSC Earth and Environmental Science Module 7
3short 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 changing atmospheric composition?Show answer
Over millions of years the composition of the atmosphere has changed, altering the greenhouse effect. The rise of oxygen produced by early photosynthesis, and long-term changes in carbon dioxide driven by weathering, volcanism and the burial of carbon, have moved Earth between warm greenhouse states and cold icehouse states. Australia's own ancient glacial deposits record times when the continent, then part of Gondwana, sat near the South Pole in a cold phase.
What is q1?Show answer
Explain how albedo influences the Earth's energy budget, using ice as an example. [3 marks]
What is q2?Show answer
Describe how Milankovitch cycles drive the glacial and interglacial cycles. [4 marks]
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