Shield volcanoes refer to ________
A
Explosive lava eruptions
B
Repeated lava flows
C
Ejection of a wide range of pyroclastic materials
D
Individual lava flows
Correct Answer: Repeated lava flows
Shield volcanoes are formed by lava flows of low viscosity - lava that flows easily. Consequently, a volcanic mountain having a broad profile is built up over time by flow after flow of relatively fluid basaltic lava issuing from vents or fissures on the surface of the volcano.