This - Crossword Labs

2. any water bearing layer in the ground
5. ammonia is converted to nitrate ions
7. generations to meet their needs
8. removal of dissolved materials from soil by water moving downwards
13. plants convert carbon dioxide into glucose
15. inorganic N is converted into organic molecules such as DNA/amino acids & proteins
17. it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them
18. a rock that contains a large enough concentration of a mineral making it profitable to mine
19. the time it takes for ½ the mass of a radioisotope to decay
22. symbiotic relationship where both partners benefit
23. organic, dark material remaining after decomposition by microorganisms
24. perfect agricultural soil with equal portions of sand, silt, clay
25. large distinct terrestrial region having similar climate, soil, plants & animals
26. bacteria convert ammonia back into N
27. using waste heat to make electricity

1. relationship in which one partner obtains nutrients at the expense of the host
3. radioactive gas, formed from the decay of Uranium, causes lung cancer
4. occurs when two tectonic plates move away from each other
6. the ability to meet humanities current needs without compromising the ability of
8. the amount of a chemical that kills 50% of the animals in a test population
9. nonliving components of an ecosystem
10. species that serve as early warnings that an ecosystem is being damaged ex trout
11. occurs when two tectonic plates move away from each other
12. living components of an ecosystem
14. biogeochemical cycle that describes the continuous movement of water on, above and below the surface of the Earth
16. climate pattern that describes the unusual warming of surface waters in the eastern equatorial Pacific Ocean
20. Two plates sliding past each other forms a
21. decomposers covert organic waste into ammonia