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13 Cards in this Set
- Front
- Back
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Where did most of the water come from on Earth?
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Magma from cooling earth ( outgassing) and/ or comets ( dirty snowballs)
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Why is the density of seawater greater than freshwater?
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Seawater contains 3.5% salt that makes it more dense
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What temperature is water most dense at? ESRT ( pg. 1)
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3.98 = 4 degrees C
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What causes the surface ocean currents to curve?
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Earth's Rotation-Coriolis Effect
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What causes tides?
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Gravitational attraction from Moon and Sun. Moon has greater attraction.
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Where does most of the salt come from that makes up seawater?
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Chemical weathering from rocks and then runoff into ocean.
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Why does the moon have a greater navigational effect on Earth?
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The moon is much closer to Earth.
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Where does the energy of most waves come from?
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the wind
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Waves that erode the shore of Lake Ontario are caused primarily by |
Winds blowing over the lake surface
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The construction of a Groin (pier) causes the shoreline to become
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Wider on the side of the groin where the wind is coming from
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Which direction is the Longshore current?
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West
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SEAWATER
% water % salts |
96.5 water
3.5 salts |
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Surface Ocean Currents
found |
ESRT
Pg 4 |
