EARTH SCIENCE
VOLCANOES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A molten mixture of rock-forming substances, gases, and water from the mantle
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Magma
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Lava
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Minerals
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Rocks
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Explanation:
Detailed explanation-1: -Answer: Magma is a molten mixture of rock-forming substances, gases, and water from the mantle. When magma reaches the surface, it is called lava. When lava has cooled, it forms solid rock.
Detailed explanation-2: -Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.
Detailed explanation-3: -Basaltic magma–SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na. Andesitic magma–SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K. Rhyolitic magma–SiO2 65-75%, low in Fe, Mg, Ca, high in K, Na. 14-Sept-2015
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