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Ch. 8.1

Earth's Oceans pt. 1

A feature on the ocean floor? abyssal plain
What kind of water is in the oceans? seawater
What refers to dissolved salt content? salinity
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 that is slightly salty? brackish water
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 areas 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. energy and mineral
The measure of the mass of dissolved solids in a mass of water is called ___________. salinity
Freshwater mixed with seawater is ___________. brackish water
The continental Shelf,'continental slope, and continental rise are regions of the continental _______. plains
The large, flat areas of the seafloor that extend across the deepest parts of the ocean basin are ______. abyssal plains
What is the term for an uncrewed submersible used to explore the seafloor? (ANSWER IS ALL IN CAPS) 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
(True or False) The five oceans are the Antarctic Ocean, the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, and the Southern Ocean. false
(True or False) Salinity is a measure of the mass of dissolved solids in a mass of water. true
(True or False) A salinity of 35 parts per thousand means that if you measured 1,000 g of seawater, 1000 g would be water molecules and 35 would be salts. false
(True or False)The salinity of seawater is not constant. true
(True or False) Brackish water is polluted water mixed wit seawater. false
Created by: persineth2168