What is the emerging magma from a volcano onto the earth’s surface called?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Lava.
- Volcanic eruption is an eruption of molten rock, hot rock fragments, and hot gases through a volcano, which is a vent in a planet's or satellite's crust.
- Magma rises in conduits to the surface as a thin and fluid lava, either flowing out continuously or shooting straight up in glowing fountains or curtains.
- Lava flows rarely kill people because they move slowly enough for people to get out of their way. However, if magma is thick and sticky, gases cannot escape easily and this pressure builds up until the gases escape violently and explode.