Question

The salt concentration (in parts per thousand) of inland waters is
(a) less than 5
(b) less than 20
(c) In between 30-35
(d) More than 100

Answer 1

ANSWER

(C ) IN BETWEEN 30-35

Answer 2

The salt concentration (in parts per thousand) of inland waters is (a) less than 5.

Reason:

• Water bodies' salinity is often measured in parts per thousand. There determines the kind of creatures that may survive in it.
• The sea has a salinity of 30-35 parts per thousand, whereas inland waterways and certain lagoons have salinities of less than 5 and more than 100, respectively.
• Because of osmotic pressure, fresh water creatures cannot survive in sea water for long.

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