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WAEarth and Environmental ScienceQuick questions
Unit 3: Managing Earth resources
Quick questions on Ecosystems and biogeochemical cycles: WACE Year 12 Earth and Environmental Science
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 carbon cycle?Show answer
Carbon moves between the atmosphere, oceans, living things and rocks.
What is the nitrogen cycle?Show answer
Nitrogen gas makes up most of the atmosphere but is unusable by most organisms until it is fixed.
What is the water cycle?Show answer
Water cycles through evaporation, transpiration, condensation, precipitation, runoff, infiltration and storage in oceans, ice, groundwater and the atmosphere. It is powered by solar energy and gravity. The water cycle distributes fresh water, shapes landscapes through erosion, and links the other cycles by transporting dissolved nutrients.
What are ecosystem services?Show answer
Ecosystem services are benefits people gain from healthy ecosystems sustained by these cycles.
What is human disruption?Show answer
Human activity shifts fluxes and unbalances cycles.
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