Across
- 3. economic activity concerned with the processing of raw materials and manufacture of goods in factories
- 5. a mixture of water and solid waste carried away in drains
- 7. the waste that does not decays easily in short period of time
- 8. a chemical or natural substance added to soil or land to increase its fertility.
Down
- 1. decayed organic material used as a fertilizer for growing plants
- 2. the waste that decays easily in a short period of time
- 4. ornaments and articles made from glass.
- 6. the presence in or introduction into the environment of a substance which has harmful or poisonous effects