Q. Lower and upper mantle is separated with the help of

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Q. Point at which the oceanic plates are forced underneath continental plate is known as

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Q. Lowest part of the mantle is known as

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Q. Process of transformation of existing rocks is known as

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Q. Salty rocks, schistose, granoblastic and hornfelsic are classified as

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Q. Changing of particles size during the process of metamorphism is classified as

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Q. In metamorphic rocks, the layering within the rocks is known as

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Q. Types of metamorphism are

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Q. Examples of metamorphic rocks are

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Q. The transformation of existing types of rocks are classified as

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Q. Minerals that are formed only at high temperature in metamorphism are

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Q. North America shares boundary with Pacific Ocean from

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Q. Largest suspension bridge 'Golden Gate Bridge' is located in North America continent at

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Q. The United States of America lies in the continent

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Q. Which is the largest island of North America?

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Q. Continent which lies within Western and Northern Hemisphere of the globe is

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Q. North America shares boundary with Atlantic Ocean from

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Q. Country which does not lies within North America continent is

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Q. North America shares its southeast boundary with

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Q. Third largest continent of the world in terms of area is

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