Question

why is the deep sea cold and dark​

Answer 1

Answer:

Cold water has a higher density than warm water. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface. ... However, the ocean is not standing still.

Answer 2

Explanation:

Cold water has a higher density than warm water. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface. ... However, the ocean is not standing still.