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OCEANS
25 cards·by Dvap
SOUND NAVIGATION AND RANGING IS?
Sonar
What does Geosat measure?
changes in the height of ocean surface
How fast does sound travel in water?
1,500 meters per second
Which is deeper, continental shelf or slope?
Continental shelf
What forms features on the ocean floor?
Plate tectonics
Ocean trenches are formed by what?
Subduction
What are 3 resources from the ocean?
fish, farming and fresh water
Point Source pollution comes from
one source
Non-Point Source Pollution comes from
many sources
What are circular patterns in which the world's oceans travel?
currents
Currents can be compared to what?
Rivers
Do all currents have the same characteristics?
No
Ocean currents maintain their paths like what?
magnets
What happens when the water nearest the moon forms a bulge?
High tide
What can be the most dangerous part of a hurricane?
Floods
What is the average depth of the ocean?
12,200 feet
Where do the continental shelves end?
Continental Slopes
Which is steeper continental slopes or shelves?
Continental Slopes
What are the deepest parts of the ocean called?
Trenches
Where is the deepest point in the ocean?
Mariana Trench
What is the highest underwater mountain?
Mauna Kea
Does wind play a factor in the formation of waves?
Yes
What do currents do?
Transport Heat
What is the measure of dissolved salts in a liquid?
Salinity
What ocean do El Niño and La Niña come from?
Pacific Ocean