This printable crossword puzzle has 20 clues. Answers range from 5 to 14 letters long. This crossword is also available to download as a Microsoft Word document or a PDF.
Wetland dominated by woody plants
Leads to an increase in nutrients in an aquatic ecosystem.
Area where fresh water mixes with salt water.
Wetland not dominated by woody plants.
Estuararies are productive ecosystems because the constantly receive nutrients from
A near shore zone.
zone found at the bottom of a lake.
A deep zone of an inland body of water below the range of effective light penetration.
Another name for a littoral zone.
Relatively shallow part of the ocean .
Tiny organisms found in the oceans that are plantlike
Tiny animal like organisms found in the oceans.
An example of a phytoplankton.
Also known as a phytoplankton.
The surface layer of the ocean that receives sunlight.
How do oysters and clams feed.
Organisms that break down dead organisms.
The amount of dissolved salts in water.
Lakes, streams , rivers and ponds are 1/100 of 1% of the _________water on earth.
71% of the earth is covered by