Gaseous rock Igneous rock Sedimentary rock Metamorphic rock
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Pumice is formed when lava from a volcano cools. Which rock type is pumice?
Possibilities:
- Gaseous rock
- Igneous rock
- Sedimentary rock
- Metamorphic rock

Igneous rock