Multiple choice Which of these volcanoes erupts in the form of a fountain and forms a cinder cone? Composite volcanoes Shield volcanoes Caldera volcanoes Flood Basalt Provinces Mid ocean ridge volcanoes Reveal answer Fill a bubble to check yourself B Correct answer Explanation Shield volcanoes are mostly made up of basalt, a type of lava that is very fluid when it erupts. The upcoming lava moves in the form of a fountain and throws out the cone at the top of the vent, and develops into cinder cone.