Consider the following statements 1 Pycnoclin...........

Geography World - Water Bodies

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Consider the following statements:

1. Pycnocline is a layer where is sharp change in density in the vertical section of seawater.

2. Mediterranean sea has high salinity than Atlantic Ocean.

3. Salinity in Arabian Sea is higher than Bay of Bengal.

4. High salinity of ocean is found in Equatorial region due to intense evaporation.

Which of the above statements are correct?

1, 2 and 4 only

1, 3 and 4 only

1, 2 and 3 only

All the above

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Explanation:

Regions of high salinity sea water are centered around 30o north and 30o south of the equator because of excess evaporation in these regions.

Being nearly landlocked affects conditions in the Mediterranean Sea: for instance, tides are very limited as a result of the narrow connection with the Atlantic Ocean. Evaporation greatly exceeds precipitation and river runoff in the Mediterranean, a fact that is central to the water circulation within the basin. That’s why Mediterranean Sea has high salinity.

Salinity near the surface in the Arabian Sea is much higher than in the Bay of Bengal because evaporation over the Arabian Sea is much greater and it receives relatively less river runoff.