DIRECTIONS Consider the following statements and select the correct answer with the help of codes gi...........

World Geography (Easy) World Physical Aspects

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DIRECTIONS: Consider the following statements and select the correct answer with the help of codes given below:

Assertion (A): Granite has larger crystals than basalt.

Reason (R): Basalt has larger content of metallic minerals.

Both A and R are true and R Explains A

Both A and R are true but R does not explain A

A is true but R is false

A is false but R is true

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Explanation:

The crystal size in the igneous rocks is more a function of the quickness of the process of cooling rather than of the mineral content. The mineral content determines the melting point of the rocks and the basaltic lava having a higher content of metallic minerals solidifies rapidly once it reaches the surface.

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