Water current involves surface or deep water circulation. Surface currents are influenced by winds and occur in the top 1313 feet of depth. Statement 4 is false. They have the same movement as thermohaline currents.
-----------------------------------------------
Many different factors can produce water currents in lakes and oceans. Some of these factors are
- winds,
- temperature,
- salinity,
- earthquakes, and
- storms.
When talking about water circulation, there are two main types of movements,
- Surface circulation, which occurs from 0 to 400 meters deep (up to 1313 feet aproximatelly)
- Deep circulation, which occurs at depths that super 400 meters.
Surface circulation is closely related to horizontal water movements, while deep circulation is related to vertical ones.
→ Horizontal water movements
- They are produced by the action of different winds on the surface.
- Superficial winds, influenced by the Coriolis effects, are responsible for most of the marine currents.
- Trade winds push the water surface forward western direction in the equator, while western winds produce currents that move water to the east at higher latitudes.
- By the Coriolis effect, water masses are deviated to the west or the east, depending on the hemisphere, resulting in large clockwise circular turns in the Northern Hemisphere and the opposite direction in the Southern Hemisphere.
- Warmer currents travel from the tropics, along the continental margins, carrying warm water to higher latitudes, and as they do so, these water masses get cooler, producing cold currents.
→ Vertical movements
- They can be related to density, salinity, and temperature.
- Variation of these factors causes thermohaline currents, which move water vertically, transporting cold water with nutrients from the bottom to the surface.
According to this resumed framework,
→ Surface currents ⇒ horizontal movement ⇒ up to 400 m depth ≅ 1313 feet
→ Deep currents ⇒ vertical movement ⇒ more than 400 m depth.
OPTIONS
- they are influenced by wind ⇒ TRUE
- they can exist in large lakes ⇒ TRUE
- they are found in the top 1,300 feet of the ocean ⇒ TRUE
- they have the same movement as thermohaline currents ⇒ FALSE
------------------------------------------------------------------------
Related link: https://brainly.com/question/17691906?referrer=searchResults
