Marine Water Crossword

The _____ ecosystems are among the largest aquatic ecosystems.
_____ keeps larger fish warm.
Marine water has a high ____ content.
Over ___ percent of the Earth's surface is covered in water.
Nearly all water on Earth is _____ from oceans.
Marine habitats are very _____ depending how warm the water is.
Salt water is water that has ____ grams of salt for every kilogram of water.
There are _____ oceans on the Earth.
Salt water means that it takes a lower temperature for the water to freeze, it normally freezes at _____ degrees.
There are _____ different temperatures of marine water.