No student devices needed. Know more
30 questions
Wind drives the strongest Ocean Currents, wind and surface currents are ultimately driven by:
Tidal Forces
Westerlies
Solar (heat) Energy
Friction
When the wind pushes the upper-most surface layer of the water it begins to move, however it goes off in a 45 degree angle because of the Coriolis Effect. This is called:
Gyre(s)
Upwelling
Eckman Transport
Equatorial Upwelling
The upper part of the water column that is affected by wind is called the ______ layer.
Eckman
Photic
Abyssal
Cold
As the Trade Winds move towards the equator, the currents these winds produce are called:
Trade Wind Currents
Westerlie Currents
Equatorial Currents
Polar Currents
Gyres are:
Large patches of Ocean that are still.
Whirlpools
When Wind-Driven surface currents combine
When Wind-Drive surface currents diverge
Gyres flow in certain directions depending on where they are located. Based on the picture, Gyres in the Northern Hemisphere:
Flow towards the South in the Northern Hemisphere
Flow towards the North in the Northern Hemisphere
Flow clockwise in the Northern Hemisphere
Flow Counterclockwise in the Northern Hemisphere
True/False: Current maps are based on average patterns over large distances and a long time span. At a given place on a given day, the current is often different.
True
False
The movement of large volumes of bottom-layer water to the surface caused by Eckman Transport is called:
Currents
Gyres
Eckman Spiral
Upwelling
An example of a region with very steady and consistent Upwelling patterns is the:
California Coast
Australia Coast
Pacific Coast of South Ameria
West Coast of Africa
True/False: Stronger Winds tend to lead to Stronger Upwelling
True
False
When would you expect to see more Intense Upwelling Patterns
During Monsoon Seasons
During Calm Seasons
During Winter Seasons
None of the Above
Surface waters of the Ocean are isolated from the deeper water due to differences in:
Clarity
Carrying Capacity
Density
Stability
Deep Water tends to be ______ and ______ than Surface Water
Warmer , Denser
Less Salty, Denser
Cooler, Less Dense
Cooler, More Dense
In general, the Ocean can be divided into ___ Layers.
5
3
6
2
The surface layer of the Ocean is considered to be between ____ and ___ deep.
50-80m
20-30m
100-200m
300-400m
Which of the following forces mixes the surface layer of the Ocean?
Wind
Waves
Currents
All the Above
The surface layer gets heated by the sun, and warm water floats to the surface because it is less dense. A sharp boundary between warm water before it transitions to cold water is called a _______.
Thermocycline
Thermohaline
Gradient
Upwell
Surface-Layer Thermocyclines may break down some when the following happens:
The weather becomes colder
Wind Mixes Water Column
Waves Mix Water Column
All of the Above
True/False: There are Seasonal (Temporary) Thermocyclines found in the Surface Layer.
True
False
The Main Thermocycline (Permanent) is found in the ________ Layer of the Ocean.
Surface
Bottom
Intermediate
Photic
The Intermediate Layer of the Ocean is typically ______ to ______ meters deep.
200-600
600-700
1000-1500
1500-2000
True/False: The Main Thermocycline is a feature of the Open Ocean and is not found near Coastline or on the Continental Shelf.
True
False
Which of the following Graphics Show Eckman Transport?
The Bottom Layer of the Ocean runs about _______ meters deep.
Above 1000
Above 500
Below 1500
Below 5000
Bottom Layer Water tends to be below ___ Degrees Celsius
1
2
3
4
Using the Image Above, Determine which direction Trade Wind Patters blow from in the Southern Hemisphere.
Southeast
Southwest
Northeast
Northwest
When warm, less dense surface water stays in place over cooler denser water with little mixing by wind/waves is said to be a _____ water column.
Unstable
Volatile
Erratic
Stable
A Water Column is More Stable when there is a ______difference in density between the deep and shallow water.
Slight
Large
Neutral
None of The Above
Water can become unstable in instances where the Surface Water actually become more Dense than the water below, this causes the now dense surface water to sink and mix with deeper water. This process is called:
Eckman Transport
Upwelling
Gyre
Overturn
If Surface waters become cooler in temperature (for example in Winter) it may actually become even denser than the deeper layers below it and begin sinking. This is a process called______.
Upwelling
Eckman Transport
Downwelling
Coriolis Effect
Explore all questions with a free account