Question

Extinct conical volcanoes often from crater lakes ​

Answer 1

A volcanic crater is a circular depression in the ground caused by volcanic activity during certain types of gigantic eruptions the volcano's magma chamber may empty enough for an area above it to subside and this dropped surface crater is called a caldera.

Answer 2

Hello mate here's your answer☺

When the funnel shaped crater of an extinct volcano is filled with rain water , its forms a crater lake.