Q. Continent which has been the epicenter of World War I and II is

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Q. Which is the layer of ice covering an extensive tract of land for a long period of time?

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Q. Ice mass of land area is classified as

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Q. High-latitude region which is covered in ice is classified as

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Q. Ice masses that are constrained by topographical features are classified as

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Q. Examples of submarine volcanic activities are

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Q. Igneous rocks with lowest content of silica are known as

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Q. Non-essential minerals present in igneous rocks are classified as

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Q. Intrusive igneous rocks are classified as

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Q. Crystals of igneous rocks that are too small to be seen with naked eyes are known as

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Q. Rocks that are formed within the crust of planet are known as

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Q. Intrusive rocks are also known as

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Q. Extrusive rocks are also known as

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Q. Example of igneous rocks is

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Q. Crystals of igneous rocks that can be seen with naked eyes are known as

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Q. Intrusive igneous rocks that are formed at depth within crust of planet are classified as

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Q. Rocks that are formed through the solidification and cooling of lava are classified as

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Q. Rocks that are formed at surface of crust due to melting of rocks are classified as

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Q. Igneous rocks that have highest content of silica are known as

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Q. Busiest port of 'Indian Ocean' is

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