Across
- 4. Pollution that can be traced
- 5. Organism which hints at water conditions and is first to respond to changes
- 7. Attraction among molecules that are not alike
- 8. Nitrogen based compound often used in fertilizer
Down
- 1. The natural process of water moving through the hydrosphere
- 2. Collection of data from a distance
- 3. Conduction in which opposite ends of a molecules have slightly opposite charges
- 6. Mass per unit of volume of a material