Multiple choice general knowledge

Often called an 'Arctic Oasis,' these sea lakes on the Polar Cap can remain liquid for an entire winter. What are they called?

  1. Polynyas

  2. Langmuirs

  3. Haloclines

  4. Natatoriums
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Polynyas are areas of open water surrounded by sea ice that can remain liquid even in winter due to ocean currents or upwelling of warmer water. They are called 'Arctic Oasis' because they provide access to the ocean for marine mammals and birds when surrounding areas are frozen. Langmuirs are wind-driven water circulations, haloclines are salinity gradients, and natatoriums are swimming pools.

Keep practicing — related questions