What ocean layer contains approximately 90% of earth's sea water

 Deep ocean (or below thermocline)

Explanation:

Most of Earth’s seawater (around 90%) is in the deep ocean, located below the thermocline and pycnocline. The deep ocean´s water is colder and denser than other ocean layers.

Because deep waters are not influenced by the wind, they are non-turbulent and homogenous, meaning they have a constant temperature and salinity from place to place.

just need the points

explanation:

d.

many people believed they were convicted solely because they were anarchists.