Of the three primary forms of subaerial volcanoes,____________ have the most gently sloping sides,due to the low viscosity of the basaltic lavas that form them.

A)stratovolcanoes
B)cinder cones
C)shield volcanoes

Question

Of the three primary forms of subaerial volcanoes,____________ have the most gently sloping sides,due to the low viscosity of the basaltic lavas that form them.

A)stratovolcanoes 
B)cinder cones 
C)shield volcanoes

Quizplus · Accepted Answer

Shield volcanoes have the most gently sloping sides due to the low viscosity of the basaltic lavas that form them. Stratovolcanoes, on the other hand, have steeper slopes due to the higher viscosity of their andesitic or rhyolitic lavas, while cinder cones have the simplest and smallest form with steep sides formed by the accumulation of loose pyroclastic material.

Of the Three Primary Forms of Subaerial Volcanoes,____________ Have the Most