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Oceans
38 cards·by lol_itsdanica
oceansflashcards
Tsunamis are sometimes called _______.
Tidal Waves
What are the circular patterns in which the world's oceans travel called?
Currents
What causes currents to flow?
Coriolis Effect, and Continents
Do all currents have the same characteristics?
No
The side of the Earth that is facing the moon is where it is _______ tide.
High
Where there is high tide, the moon is _________ at the water.
Pulling
What can be the most dangerous part of a hurricane?
Flooding
What is the Average Depth of the ocean?
12,200 ft (3720 m)
What are the shallow seas that cover gently sloping areas around most continents called?
Continental Shelves
Where do the continental shelves end?
Abyss, trenches
What are the deepest parts of the ocean called?
Ocean trenches
What is Nonpoint-source Pollution?
pollution that comes from many different sources
What is Point-source Pollution?
pollution that comes from a specific source
What is sludge?
the solid part of waste matter
List 3 resources available from the ocean.
Kelp, food, drinkable water
What kinds of seafood are raised and harvested in farms?
shrimp, oysters, crabs, mussels
What are some ways we use seaweed?
a thickener for food products
What is desalination?
the process of removing salt from the water
Name 3 advantages of tidal energy.
clean, inexpensive, renewable
Sonar stands for...?
sound navigation and ranging
Geosat measures...?
changes in the height of ocean surface.
What are the different vocabulary words we use to measure waves?
Wavelength, waveheight
What is the top of the wave called?
the Crest
What is the bottom of the wave called?
the Trough
What are 3 subdivisions of the continental margin?
Continental shelf, Continental slope, Continental rise
What does the deep-ocean basin consist of?
the Abyssal plain, Mid-ocean ridges, Rift valleys, ocean trenches
The flattest regions on Earth are called...?
Abyssal Plains
Mountains on the ocean floor that can turn into volcanic islands are called...?
sea-mounts
Which way do the winds blow near the equator?
East to West
What happens to ocean water as it becomes denser?
deeper
Name 3 materials transported by global ocean circulation.
Oxygen, Nutrients, Heat
In what ocean do El Nino and La Nina form?
South Pacific
What 2 forces influence tides? Which one influences the most?
Sun and Moon, Moon
What are High Tides?
the bulges that form as a result from the moon's gravitational pull
Where do low tides form?
between High Tides
Where do High Tides form?
where the moon is pulling AND the opposite side of that
How much time is there between tides?
around 12 hours
What are 3 factors that control surface currents?
Global winds, Coriolis effect, Continental deflections