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प्रश्न
Assertion (A): The upper part of the crust is called SIAL.
Reason (R): SIMA is a continuous layer.
पर्याय
Both A and R are true and R is the correct reason for A.
Both A and R are true but R is not the correct reason for A.
A is true and R is false.
A is false and R is true.
MCQ
विधान आणि तर्क
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उत्तर
Both A and R are true but R is not the correct reason for A.
Explanation:
The upper part of the earth’s crust is called SIAL (rich in silica and aluminum), and the lower part is called SIMA (rich in silica and magnesium). SIMA forms a continuous layer beneath the crust. However, the fact that SIMA is a continuous layer is not the reason why the upper part of the crust is called SIAL. So, both statements are true, but R is not the correct reason for A.
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