By composition, group, and method of lithification. Composition is what its made of, group is whether the rock has grain of layers, and method of lithification is whether is was formed from compaction, cementation, etc<span />
A volcano with an empty magma chamber would be called a caldera
Explanation: During certain types of explosive eruptions, a volcano's magma chamber may empty enough for an area above it to subside, forming a type of larger depression known as a caldera.
Answer:
maybe because of the tides from the moon or global warming?
Explanation:
it could be the tides because of the mooons gravitational force or it could be global warming and the ice melting makeing the water level higher i hope this helps in some way have a good day XD
