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Q: Sea water is saltier than rain water because
  • A. Sea animals are salt producing
  • B. The air around the sea is saltier
  • C. Rivers wash away salts from earth and pour them into the sea
  • D. Sea beds have salt producing mines
Correct Answer: Option C - Rain is the source of water for rivers and other water bodies. The natural water gets mixed with natural substances and salt, the water tastes sweet. But when they pour that water into oceans & seas, a large amount of salts like sodium chloride & magnesium chloride get accumulated there. Every time evaporation removes water. and salt still stays there, again rivers pour new water. Again evaporation takes place and salt is left out So, in millions or more the process is carried out, the evaporation balances amount of water, but the concentration of salt gets increased every time.
C. Rain is the source of water for rivers and other water bodies. The natural water gets mixed with natural substances and salt, the water tastes sweet. But when they pour that water into oceans & seas, a large amount of salts like sodium chloride & magnesium chloride get accumulated there. Every time evaporation removes water. and salt still stays there, again rivers pour new water. Again evaporation takes place and salt is left out So, in millions or more the process is carried out, the evaporation balances amount of water, but the concentration of salt gets increased every time.

Explanations:

Rain is the source of water for rivers and other water bodies. The natural water gets mixed with natural substances and salt, the water tastes sweet. But when they pour that water into oceans & seas, a large amount of salts like sodium chloride & magnesium chloride get accumulated there. Every time evaporation removes water. and salt still stays there, again rivers pour new water. Again evaporation takes place and salt is left out So, in millions or more the process is carried out, the evaporation balances amount of water, but the concentration of salt gets increased every time.