Which one of the following flows out from a volcano?
A
Water
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B
Lava
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C
Igneous rocks
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D
All of these
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Solution
The correct option is B Lava Lava flows from the volcano. Molten rock materials are generally called magma below the earth's surface while when they come out at the earth's face they are called lava. Lava is very hot and the temperature ranges between 700 to 1200 degrees Celsius.