24HRAS1

2. Water where fresh and saltwater meet; saltier than fresh water.
6. Non-living factor in an environment like light, water, or temperature.
9. The study of marine environments in oceans, seas, and brackish water.
15. Water stored in slowly flowing underground reservoirs called aquifers.
17. Open-water area away from shore reaching sunlight.
20. The living components of an ecosystem like fauna and flora.
22. A partly enclosed body of water where seawater and freshwater mix.
23. Animals and plants that can reproduce and belong to a biological category below genus.
24. A compound with no fixed shape or size, taking the shape of its container.
25. All external conditions affecting the development and survival of an organism.
26. A still, freshwater ecosystem.
27. An organism with a backbone and internal skeleton.

1. The change of gas or vapor into a liquid, like water vapor turning into water droplets.
3. The beginning of a stream system without tributaries, usually small, fast, cold, and clear.
4. A flowing body of ice formed in snowy regions.
5. The study of inland water bodies like ponds, lakes, and wetlands.
7. The process of water circulating through the ecosystem including precipitation and evaporation.
8. Use of ecosystem concepts to guide management actions and planning.
10. Growing, living in, or frequenting waters.
11. A flowing, freshwater ecosystem.
12. Making adjustments to the environment, like plants growing where conditions are balanced.
13. Water containing little or no salt.
14. The study of living organisms.
16. The natural environment providing food, water, shelter, and space for an animal or plant.
18. All living things and their environment where they are linked by energy and nutrient flow.
19. Harmful substances in air, water, or land causing dirtiness or unhealthiness.
21. An area where land and water meet with hydrology, soils, and hydrophytic plants.