Question

how are fissure type volcano formed​

Answer 1

Answer:

The intrusion of magma into an edifice can produced large fractures, or fissures, that locally become the focus of explosive activity or lava effusion. Due to this, a fissure volcano is formed.

Answer 2

Fissure Eruptions are formed when the magma flows out of the cracks in ground and gets leaked on the surface.

These type of volcano are formed due to the fractures caused in earth's tectonic plates when they collide or move away from each other.