Fresh water is water that does not have any salt in it and is safe to drink
100
What are deep ocean currents?
Deep ocean currents are driven by density and temperature gradients
100
What are tides?
the periodic rise and fall of the waters of the ocean and its inlets, produced by the attraction of the moon and sun, and occurring about every 12 hours.
100
What is salinity?
salty water; a salty solution.
100
What is a mid ocean ridge?
any of several seismically active submarine mountain ranges that extend through the Atlantic, Indian, and South Pacific oceans: each is hypothesized to be the locus of seafloor spreading.
200
what is salt water
Water with large amounts of salt.
200
What is another name for a deep ocean current?
The Global Conveyor Belt
200
What is a sea mount
a submarine mountain rising several hundred fathoms above the floor of the sea but having its summit well below the surface of the water.
200
What is El Nino
a warm ocean current of variable intensity that develops after late December along the coast of Ecuador and Peru and sometimes causes catastrophic weather conditions.
200
What is a continental slope?
a steep slope separating a continental shelf and a deep ocean basin.
300
TRUE or FALSE.
are All parts of the ocean are salt water?
FALSE
300
True or False?
Deep ocean currents are driven by density differences in the water.
True
300
What is a rift valley?
a subsea chasm extending along the crest of a mid-ocean ridge, locus of the magma upwellings that accompany seafloor spreading.
300
What is La Nina
A cooling of the surface water of the eastern and central Pacific Ocean, occurring somewhat less frequently than El Niño events but causing similar, generally opposite disruptions to global weather patterns. La Niña conditions occur when the Pacific trade winds blow more strongly than usual, pushing the sun-warmed surface water farther west and increasing the upwelling of cold water in the eastern regions.
300
What is a continental shelf?
the part of a continent that is submerged in relatively shallow sea.
400
How much water on earth is pure salt water?
97%
400
TRUE or FALSE?
Are Cold deep ocean currents on the surface or are they deep down under water?
Cold deep ocean currents are deep down under water.
400
What is a sea cave?
cave formed in a cliff by wave action of an ocean or lake. Sea caves occur on almost every cliffed headland or coast where the waves break directly on a rock cliff and are formed by mechanical erosion rather than the chemical solution process that is responsible for the majority of inland caves. Zones of weakness in the cliff give way under the force of the waves and are eroded out; these cavities are enlarged by the hydraulic pressure built up by each wave. Holes, commonly known as blowholes, may eventually be forced through the roof of the cave to allow the pressure created by each wave to be released as a jet of spray
400
What do under water earth quakes make happen.
Tsunomi
400
What is the Water Cycle?
the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation.
500
3% of earth's water is fresh water. is all of that water safe to drink.
No, most of earths fresh water is in glaciers and polar ice caps.
500
In deep ocean currents is the warm water flowing in the direction of north or south?
North
500
What is a slip face.
the back part of a sand dune. it's also the steepest part.
500
Why is the ocean salty?
All water, even rain water, contains dissolved chemicals which scientists call "salts.
500
How are beaches formed?
Beaches are the result of wave action by which waves or currents move sand or other loose sediments of which the beach is made as these particles are held in suspension.