In the diagram of the earths interior, where does the material that forms volcanoes originate

In the diagram of the earths interior, where does the material that forms volcanoes originate

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  1. The answer is C.

    Layer C is the mantle of the earth and it is the layer immediately below the upper-most layer of the earth, the crust. The substances in the mantle are in the molten state due to the high temperature and the liquid form is called magma. Once a volcano erupts and the magma is released to the surface of the air, it is called lava.

  2. In general the earth's interior has been sorted by Gravity. Heavier elements like iron tend to sink toward the center or core of the earth. Lighter materials, the silicates, oxygen compounds and water have risen to become part of the crust. This action has created distinct layers within the earth and is still in process today.

  3. The truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey

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