ICSE BoardEnglish MediumSTD 9GeographyEarth’s Structure2 Marks
Question
The continents are placed above the oceans.
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Answer
The density of continents is lesser than the layer supporting the ocean beds, so the continents came floating upwards at the time of the formation and solidification of the earth, as the lighter things come upwards floating over the heavier things i. e. Sial is lighter than Sima
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