Question

what volcano is made of small particles of hardened lava that cools in the air after an eruption. it is the most common of the volcanos and are often called \fire mountains?\ cinder - cone composite (strato) shield

Explanation:

Cinder - Cone volcanoes are formed from small particles of hardened lava (cinders) that cool in the air after an eruption. They are the most common type of volcano and are often referred to as "Fire Mountains". Composite (Strato) volcanoes are made of alternating layers of lava and ash, and Shield volcanoes are broad, gently sloping volcanoes formed by fluid lava flows. So the correct answer is Cinder - Cone.

Answer:

A. Cinder - Cone