GEOLOGY

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EARTH SCIENCE

VOLCANOES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the meaning of surface as it is used in these sentences?"Lava, or liquid rock, was shooting up to the water’s surface from below. Ash, tiny bits of rock crushed to a powder, also shot up to the surface.”
A
to come into sight
B
to break through
C
the middle part of something
D
the top part of something
Explanation: 

Detailed explanation-1: -Lava is a liquid, that cools into rock, which is a solid. BACKGROUND: Lava is molten rock (a liquid) that flows on the earth’s surface. Lava is formed inside the crust of the Earth by extreme heat; it erupts to form a volcano.

Detailed explanation-2: -Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma. Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth’s surface.

Detailed explanation-3: -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.

Detailed explanation-4: -Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth’s surface. These are the rocks that form at erupting volcanoes and oozing fissures.

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