All mountains are volcanoes. is this statement true or false

No this statement is false. Melted rocks that have hardened are considered igneous rocks. When magma erupts on the Earth's surface, it often builds a volcano, which is basically a pile of cooled volcanic rock. Volcanoes may be hill to mountain size. Some hills and mountains are not volcanoes.

Biblograghy: Google.com

No this is false. Hope I helped.

Answerlife is suffering;