Answer:
Cinder Cones
Step-by-step explanation:
Cinder cones are most simple type of volcanoes that are made up of particle and blobs (cinders) of congealed lava coming out of one single vent. These volcanoes consists of piles of lava only and no ash.
When they erupt, the cinders of lava break into smaller pieces and fall on the ground.
For example - Paricutin in Mexico.