Copper ores are a finite resource. Which statement explains why new methods of extracting copper are being developed?
Copper cannot be recycled, so new copper must always be extracted
The ores that are left contain too little copper for traditional methods
Traditional methods of extraction release copper into the atmosphere
Copper is needed in larger quantities than any other metal in the world
40 exam-style questions on AQA GCSE Chemistry 10.1 Using the Earth's resources and obtaining potable water, covering 10.1.1 Using the Earth's resources and sustainable development, 10.1.2 Potable water, 10.1.3 Waste water treatment, and 10.1.4 Alternative methods of extracting metals. Each one has a worked solution and a mark scheme showing where the marks go.