Environment

3. Artificial barrier which impounds or diverts water
9. Water which is not absorbed by the soil and flows to lower ground, eventually draining into a stream, river, or other body of water
10. Process of purposely providing land with water other than rain water by artificial means
11. Planting of new forests on lands that historically have not contained forests
13. electrical and electronic equipment,including solar photo-voltaic modules or panels or cells,whole or in part discarded as waste
14. discarded materials that are no longer required by the owner or user
15. Naturally occurring water having a low concentration of salt

1. Energy transfer in the form of electromagnetic waves
2. Water that collects in porous layers of underground formations known as aquifers
3. Practices or processes that result in the conversion of forested lands for non−forest uses
4. A natural unit made up of all living and non-living things in an area
5. The plant life of a particular region or time
6. Site or environment where a plant or animal lives
7. Gas or liquid fuel made from plant material (biomass)
8. the triatomic form of oxygen, is a gaseous atmospheric constituent
12. Substances containing only hydrogen and carbon