Which one of the following is known as a zone of sharp salinity change in the vertical section of ocean?

The correct answer is Halocline

Key Points

Salinity changes with the depth but it depends on the location of the sea.

• In the area called Halocline, the salinity increases drastically in the vertical direction.
• Higher saline water sinks below the low saline water leading to vertical salinity stratification.
• Thermocline is that particular area in the water body, where temperature changes more rapidly in the vertical direction.
• Pycnocline is where the water density increases rapidly with depth.
• Photic Zone is that zone in the water body, which is illuminated by the incoming sunlight.