Here's why:
* Stratovolcanoes are known for their tall, conical shape with steep sides. They are built up by layers (strata) of hardened lava flows, ash, and tephra.
* Cinder cones are smaller volcanoes with steep sides formed from eruptions of pyroclastic material (cinders and ash).
* Shield volcanoes have broad, gently sloping sides formed from fluid lava flows.
* Calderas are large, bowl-shaped depressions formed by the collapse of a volcano after a major eruption.
Let me know if you have any other questions!