Salinity variations in the open ocean normally range from 33 parts per thousand to

Salinity variations in the open ocean normally range from 33 parts per thousand (ppt) to 37 parts per thousand. Salinity could vary depending on location especially in oceans near a river or even surface water of oceans in the subtropics. However, in general, salinity should be 75% of the water in the ocean (approximately 34 - 35 ppt).

Centrapedial force is the answer