Key term for OCR GCSE Geography B, used in Global Food Security.
Agricultural processes designed so that organic waste is completely recycled back into the system, such as using crop waste for compost.
Closed-loop systems appears in OCR GCSE Geography B revision content for Resource Reliance, especially Global Food Security and Sustainability of Food Strategies.
Create a free account to access OCR GCSE Geography B revision notes, track progress, and practise related key terms.