GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the difference between lava and magma.
A
Lava is hot and magma is cool.
B
Magma is inside the Earth and lava flows on the Earth’s surface.
C
Magma flows on the Earth’s surface and lava is found inside the Earth.
D
There is no difference, they are the same thing.
Explanation: 

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: -Magma is composed of molten rock and is found in the Earth’s crust. Lava is magma that reaches the surface of our planet through a volcanic vent. As they are both molten rock that emerge from below the Earth, it can get confusing to identify one from the other.

Detailed explanation-3: -The distinction between magma and lava is all about location. When geologists refer to magma, they’re talking about molten rock that’s still trapped underground. If this molten rock makes it to the surface and keeps flowing like a liquid, it’s called lava.

Detailed explanation-4: -The most familiar way for magma to escape, or extrude, to Earth’s surface is through lava. Lava eruptions can be “fire fountains” of liquid rock or thick, slow-moving rivers of molten material. Lava cools to form volcanic rock as well as volcanic glass.

Detailed explanation-5: -Magma is extremely hot liquid and semi-liquid rock located under Earth’s surface. When magma flows onto Earth’s surface, it is called lava.

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