A forestry company harvests mature trees for timber and plants replacement trees. The company's use of timber is sustainable. Which statement explains why?
Replacement trees regrow at least as fast as mature trees are harvested
Timber is natural, so harvesting it does not reduce the future supply
Planting one new tree immediately replaces each mature tree that is harvested
Timber is renewable, so trees can be harvested at any rate without running out
87 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.