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What causes the formation of the NADW?Group of answer choicesgravitythe Sunthe absence of sunlighthigh sunlight angleequator

Question

What causes the formation of the NADW?

Group of answer choices

  • gravity
  • the Sun
  • the absence of sunlight
  • high sunlight angle
  • equator
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Solution

The formation of North Atlantic Deep Water (NADW) is a complex process that involves several factors. However, from the options provided, none of them directly cause the formation of NADW.

The formation of NADW is primarily driven by changes in water temperature and salinity in the North Atlantic Ocean. When warm, salty water from the Gulf Stream reaches the North Atlantic, it cools down and becomes denser. This dense water then sinks to the bottom of the ocean, forming the NADW.

This process is part of the global thermohaline circulation, also known as the "global conveyor belt," which plays a crucial role in regulating Earth's climate by transporting heat around the planet.

So, while factors like the Sun (which drives evaporation and therefore salinity) and gravity (which influences the sinking of dense water) are indirectly involved, they are not the direct cause of NADW formation.

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