Salt concentration (salinity) of the sea measured in parts per thousand is:

Options

A. `10-15`
B. `30-70`
C. `0-5`
D. `30-35`

Answer

D

Explanation

The salinity (measured in parts per thousand) is less than 5 in land water, 30-35 in sea water and `gt` 100 in some hypersaline water bodies like lagoons. After temperature, water is an important abiotic factor which has a great influence on the life of an organism. In an oceanic ecosystem, organisms face many waters related problems like pH, salinity of water. The salinity (salt concentration) of sea is measured in parts per thousand units. It is about 30-35 ppt.