Answer:
The liquid which comes out of an active volcano is called lava. Lava is molten rock that is expelled during a volcanic eruption. Here is a detailed explanation:
Lava:
- Lava is a liquid form of magma that erupts from a volcano during an eruption.
- It is composed of molten rock, minerals, gases, and other materials.
- Lava is extremely hot, with temperatures ranging from 700 to 1,200 degrees Celsius.
- It can flow down the sides of a volcano and spread across the surrounding area, causing destruction to anything in its path.
- As lava cools and solidifies, it forms igneous rocks.
Water Vapor:
- Water vapor is not the liquid that comes out of an active volcano.
- Water vapor is the gas phase of water and is released as steam during volcanic eruptions.
- It is formed when water is heated and evaporates into the air.
Magma:
- Magma is molten rock located beneath the Earth's surface.
- It is the source of lava during volcanic eruptions.
- Magma is composed of a mixture of molten rock, gases, and minerals.
- When a volcano erupts, magma rises to the surface and becomes lava.
Petroleum:
- Petroleum is a fossil fuel formed from the remains of ancient plants and animals.
- It is not associated with volcanic activity and does not come out of an active volcano.
In conclusion, the correct answer is B: Lava. Lava is the liquid that comes out of an active volcano during an eruption.