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EnglandEnvironmental ScienceQuick questions

3.2 The physical environment

Quick questions on The hydrosphere: the water cycle, water stores and fresh water supply - AQA A-Level Environmental Science

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 q1?
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State approximately what percentage of the Earth's water is salt water in the oceans, and where most fresh water is stored. [2 marks]
What is q2?
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Explain how ocean currents help to moderate the climate of coastal regions. [3 marks]
What is q3?
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A catchment receives 800 mm of precipitation, loses 480 mm to evapotranspiration and recharges 80 mm to groundwater. Calculate the surface runoff and its percentage of precipitation. [3 marks]

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