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Assertion (A) : The continents are floating on the sea. Reason (R) : The continents are composed of silica and aluminium while the oceans are composed of silica and magnesium.

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Assertion (A) : The continents are floating on the sea. Reason (R) : The continents are composed of silica and aluminium while the oceans are composed of silica and magnesium.






 
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