alleryWhy are upwellings and cold currents from polar regions valuable to marine life?
AThey warm the surface
BThey bring nutrients
CThey lower salt level
DThey stop all waves
Answer & Solution
Correct answer: B. They bring nutrients
1. Cold currents from polar and sub-polar regions bring nutrients.
2. The nutrients support plankton growth.
3. Plankton is crucial prey for key marine species.
_Source: Wikipedia, Ocean current, Effects on climate and ecology_
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