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PVES Week 5
Oceans
Question | Answer |
---|---|
What is the amount of salt in the water? | salinity |
What are the three parts of the ocean floor that are located near the coast? | continental shelf, continental slope, continental rise |
Which part of the ocean floor is located closest to the coast? | continental shelf |
What is the steep drop from the continental shelf to the ocean floor? | continental slope |
What is the slope of sediment that is located at the bottom of the continental slope? | continental rise |
What part of the ocean floor is flat and located deep within the ocean? | abyssal plain |
A break in the ocean floor is known as a- | an ocean trench |
what three things cover the continental shelf, slope and rise? | sand, mud, rocks |
What percent of the Earth is covered b oceans? | 70% |
Where would find the lowest level of salinity in the ocean? | Where a river enters the ocean |
What are the three basic motions of the ocean? | waves, tides, ocean currents |
A ___________ is a river of water that runs through the ocean. | an ocean current |
What is the rise and fall of the ocean's surface level? | tide |
Ocean ______________ are affected by the moon's gravity? | tides |
A ______________ is a pattern caused by vibration. | wave |
Ocean currents can affect? | navigation routes, plant/ animal life/ mixing of ocean water |
What two things act together to create ocean currents? | wind patterns / differences in water densities |
What happens to water pressure as you increase depth | increases |
What happens to the amount of light as you increase ocean depth? | decreases |
What produces most of the Earth's oxygen supply? | phytoplankton |
What three things affect plant and animal life of the ocean? | temperature, water pressure, amount of light |
What would be the considered the "base" of the ocean's ecosystem? | phytoplankton |
Ocean water has to be _______________in order to survive. | rich in nutrients |
Ocean trenches are ___________ and the continental shelf is __________. | deep/ shallow |
Free floating organisms that live in the ocean water are? | plankton |
Animal like plankton is? | zooplankton |
Plant like plankton is? | phytoplankton |