The zone in which ocean salinity increases sharply with depth is called :
Halocline
Ocean water is layered, and between the surface layer and the deep layer there are transition zones in which a property changes rapidly with depth. Each such zone is named with the suffix -cline after the property that changes.
Salinity is the amount of dissolved salt in sea water ('halo' refers to salt). The zone in which salinity rises sharply with increasing depth is therefore called the halocline. NCERT describes it as the zone below the surface layer where salinity increases sharply.
The thermocline is the zone of rapid fall in temperature with depth. The pycnocline is the zone of rapid change in density, which results from temperature and salinity together. The chemocline is a general term for a sharp chemical gradient, such as of oxygen or hydrogen sulphide, mainly in stratified lakes and seas, and is not specific to salinity.
Halocline option is correct.
Important Questions from Oceanography
The Gulf Stream is found in
Consider the following statements :
1. In the tropical zone, the western sections of the oceans are warmer than the eastern sections owing to the influence of trade winds
2. In the temperate zone, westerlies make the eastern sections of oceans warmer than the western sections.
Which of the statements given above is/are correct?
Which of the following statement is not correct?
I. Generally, warm ocean currents originate near the equator and flow towards the poles.
II. Gulfstreams are cold water currents.
Which of the following ocean currents does not flow into the Pacific Ocean?
Which one of the following is a cold ocean current ?
