Across
- 2. Not depleted when used.
- 5. A series of events that are regularly repeated in the same order.
- 8. Different types have different properties, e.g. ceramics are hard and strong, but brittle. Polymers are strong and tough, and often flexible.
- 9. The process of obtaining a metal from a mineral, usually by reduction or electrolysis.
Down
- 1. Places where refuse is buried underground.
- 3. A substance that pollutes something, especially water or the atmosphere.
- 4. An assessment of the environmental impacts of each stage of a product's life cycle.
- 6. The immediate surroundings in which people live, or the natural world such as the land, air or water.
- 7. The action of assessing someone or something.