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Chapter 8 Lesson 1

Oceans

QuestionAnswer
chemical process in which light energy, water, and carbon dioxide are converted into sugar photosynthesis
to operate with hands or by mechanical means in a skillful manner manipulate
Water in the oceans seawater
The oceans were filled during tens of thousands of years with water from ___________ and possibly ice from comets and asteroids. precipitation
The continental margins include the continental ________, the continental slope, and the continental rise. shelf
The large, flat areas of the seafloor that extend across the deepest parts of the ocean floor are the ____________. abyssal plains
In areas where tectonic plates collide, the seafloor has deep _______. trenches
In areaa where tectonic plates separate, the seafloor has mid-ocean ______. ridges
Oceanographers use ___________ to explore the seafloor. submersibles
Physical characteristics that are used to classify the ocean into zones include water depth temperature, salinity, density, and amount of _______ received. sunlight
Water from a sea or an ocean that has an average salinity of 35 ppt is ________. seawater
Two main types of resources on the seafloor are _________ and ________ resources. mineral & energy
The measure of the mass of dissolved solids in a mass of water is called ________. salinity
The continental shelf, continental slope, and continental rise are regions of the continental ________. plains
What is the term for an uncrewed submersible used to explore the seafloor? ROV
Which zone does not receive any sunlight? deep zone
What happens to density as depth increases in oceans? it increases
The __________ zone receives some sunlight and extends from an average depth of 100 m to 1,000 m. middle
The __________ zone receives no sunlight and extends below a depth of 1,000 m. deep
Two main types of resources on the seafloor are _________ and ________ resources. mineral & energy
What is the term for an uncrewed submersible used to explore the seafloor? ROV
Which zone does not receive any sunlight? deep zone
What happens to density as depth increases in oceans? it increases
Salt water mixed with freshwater is _________. brackish water
The __________ zone receives the most sunlight and has an average depth of 100 m. surface
The __________ zone receives some sunlight and extends from an average depth of 100 m to 1,000 m. middle
The __________ zone receives no sunlight and extends below a depth of 1,000 m. deep
Created by: megenkel2162