"Ch. 11 - The Coastal Ocean": HTML5 Crossword

Across

1. A group of industrial chemicals used in a variety of products; responsible for several episodes of ecological damage in coastal waters. (4)
4. Areas of sea water that are depleted of dissolved oxygen and are a more severe condition of hypoxia. (6)
6. An international law that established policies concerning the prospecting and mining of minerals on the ocean floor. (11)
8. A long, narrow, deep, U-shaped inlet that usually represents the seaward end of a glacial valley that has become partially submerged after the melting of the glacier. (5)
9. An estuary formed by rising sea level flooding a coastal river valley. (19)
10. The _______ patch is an area in the eastern part of the North Pacific Gyre that serves as an accumulation area for floating plastic and other trash. It is about twice the size of Texas. (21)
13. A process in which certain marine organisms concentrate within their tissues many substances found in minute concentrations in sweater. (15)
16. The introduction of substances that result in harm to the living resources of the ocean or humans who use these resources. (9)
19. A shallow estuary (lagoon) separated from the open ocean by a bar deposit such as a barrier island. The water in these estuaries usually exhibits vertical mixing. (15)
20. A relatively flat area of the shore where fine sediment is deposited and salt-tolerant grasses grow. One of the most biologically productive regions of Earth. (9)

Down

2. Concentration of impurities as animals are eaten and the impurity is passed through food chains. (16)
3. A small, rounded piece of pre-production plastic. (6)
5. A marshlike environment dominated by mangrove trees. They are restricted to latitudes below 30°. (13)
7. The _______ pattern is a flow pattern in an estuary characterized by a net surface flow of low-salinity water toward the ocean and an opposite net subsurface flow of seawater toward the head of the estuary. (20)
11. _______ pollution is any type of pollution entering the ocean from multiple sources rather than from a single discrete source, point, or location (also called poison runoff). (14)
12. A type of scientific experiment that involves the use of a live animal or tissue to determine the biological activity of a substance. (8)
14. A partially enclosed coastal body of water in which salty ocean water is significantly diluted by freshwater from land runoff. Examples include river mouths, bays, inlets, gulfs, and sounds. (7)
15. A degenerative neurological disorder caused by poisoning with a mercury compound found in seafood obtained from waters contaminated with mercury-containing industrial waste. (15)
17. A shallow stretch of seawater partly or completely separated from the open ocean by an elongated narrow strip of land such as a reef or barrier island. (6)
18. A layer of water in which a high rate of change in salinity in the vertical dimension is present. (9)