FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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cooled rock inside a volcano
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cooled rock outside a volcano
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melted rock inside a volcano
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melted rock outside a volcano
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Detailed explanation-1: -Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.
Detailed explanation-2: -Beneath the surface of the earth, the Magma is found. With the melting of the magma at various tectonic settings, magma is produced. The molten rock or magma that comes out from the interior of a terrestrial planet or moon is known as Lava.
Detailed explanation-3: -Magma is derived from partial melts of existing rocks in Earth’s mantle. Complete answer: Igneous rock or magmatic rock is made up of molten magma. It is one of the three main rock types; sedimentary and metamorphic.
Detailed explanation-4: -The term volcano also refers to the opening or vent through which the molten rock and associated gases are expelled. Driven by buoyancy and gas pressure the molten rock, which is lighter than the surrounding solid rock forces its way upward and may ultimately break though zones of weaknesses in the Earth’s crust.