Answer: Craters
Explanation:
A volcano is a slow or explosive rupture in the earth crust which causes hot lava, volcanic ash, and gases known as magma inside the earth crust to escape. Upon cooling,some visible land features can be identified which are Craters, Calderas, lava flows , lava tubes etc
To visibly identify A crater, it is like a void or depression usually bowl-like formed after magma, and other materials have been erupted.
