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What resource do we drill for on the ocean floor?
oil
La Nina causes _______.
colder temperatures than normal
Climate is different than weather because climate is _____.
over a long period of time
What causes a decrease in ocean salinity?
glaciers melting
Which ocean is the shallowest?
Arctic
Which layer of the ocean has greater biodiversity?
sunlight zone
Why is it so hard to study the deep sea?
high pressure
Cold currents make summers on the west coast of US ______.
dry, cool
In what direction does the Coriolis Effect cause the gyres to turn in the Northern Hemisphere?
clockwise or to the right
Where is the deepest place on Earth?
Mariana Trench
What part of the seafloor is deepest part?
trench
What part of the seafloor creates new seafloor and is the longest mountain range?
mid-ocean ridge
What part of the seafloor is the shallow part near the shore?
continental shelf
What part of the seafloor is mostly flat?
abyssal plains
What causes a harmful algal bloom?
excess nutrients
An increase in ocean salinity can cause this.
density current
What motion do water particles in waves travel?
ciruclar
What is a circular system of currents?
gyre
What are cold currents that bring nutrients to the surface?
upwellings
How much of the Earth's surface is covered with ocean?
3/4
When gases get mixed at the surface, how do they get mixed to deeper levels?
waves mix them in
Does warm water or cold water evaporate faster leaving salt behind?
warm
What forms when the top of the wave moves faster than the bottom and the wave collapses?
breaker
What causes the water to move between the water and air if the wind is blowing?
friction
An increase in carbon dioxide causes the ocean water to become...
more acidic
The salinity of ocean water is about 35 g per 1 kg of this.
dissolved salts
What causes surface currents?
wind
What causes tides?
gravitational pull moon
Do currents affect the climate of coastal areas?
yes
This is how the temperature of the ocean water affects the amount of oxygen it contains.
as temperature rises there is less oxygen
Why is the health of the ocean important to humans?
provides minerals, energy and food
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