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8.2

oceans waves

QuestionAnswer
In areas where tectonic plates collide, the seafloor has deep_. trenches
In areas there tectonic plates separate, the seafloor has mid-ocean _. ridges
a feature on the ocean floor abyssal plains
type of water in the ocean sea water
refers to dissolved salt content salinity
sightly salty brackish
Oceanographers use _ to explore the sea floor submersibles
What is the term of an unman submersible used to explore the sea floor ROV
which zone does not receive any sunlight dark zone
what happens to density as depth increase in oceans increase
Brackish water is polluted water mixed with salt water False
Salinity is a measure of the mass of dissolved solids in a mass of water true
describe the areas called the abyssal plains flat plains at the bottom of the sea.
list two main categories of resources on or beneath the sea floor minerals, energy
Distinguish between how an ocean trench and an mid ocean ridge form trenches are formed when tectonic plates hit and mid ocean ridge is formed when tectonic plates pull apart
How does light that is absorbed affect the temp. of the water. It warms up the water
Why do organisms that perform photosynthesis live only in the surface zone. They need sunlight to perform photosynthesis.
the surface zone receives _ sunlight the most
The middle zone receives _ sunlight some
The deep zone receives _ sunlight no
what is thee average temp. of water below a depth of 1000 meters 4 degrees Celsius
At what depths is the salinity of ocean water relatively constant 2000- 4500
The salinity of sea water is not constant true
The five oceans are the Antarctic oceans, the pacific ocean, the Atlantic ocean, the Indian ocean, and the southern ocean. false
water from an sea or ocean has an average salinity of 35ppt sea watere
Created by: langlwes1012327
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