GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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evaporation of its surface
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volume of fresh water added by rainfall
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salts are already present in sea water
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both (a) and (b)
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Detailed explanation-1: -Sodium and chloride, the main constituents of the type of salt used in cooking, make up over 90% of all the ions found in seawater. Around 3.5% of the weight of seawater comes from dissolved salts. Some mineral ions are used by marine animals and plants, removing them from the water.
Detailed explanation-2: -Sea water is salty because many salts like magnesium chloride and sodium chloride are dissolved in it. These salts are brought mainly through rivers and streams.
Detailed explanation-3: -Sea water is both a solution as well as a suspension. It should be classified as a solution because the salts that are present in sea water are completely dissolved, and in terms of salt, the sea water has a homogeneous composition. Thus sea water is a solution of salt in water.