Across
- 3. two atoms connected by chemical bonds
- 4. drains rain water towards streams and rivers
- 6. the draining of water away from the surface of an area of land
- 7. alternate term for storm drain
Down
- 1. to water crops by bringing in water via pipes and canals
- 2. the source of a stream or river
- 5. a series of prolonged shortages in the water supply