Chapter 18 Crossword Puzzle

Horizontal Words

1. Occurring on the bottom of a body of water (7)
3. Grows best in high atmospheric pressure (10)
5. To produce light threw a reaction (10)
7. Small animals (10)

Vertical Words

2. Dissolved salt content in a body of water (8)
4. Intermediate depths of the ocean (11)
6. Aquatic microorganisms in water columns (11)
8. Animals that live on the sea floor (7)
9. Dissolved Organic Carbon (3)