Magma that is highly viscous with a high silica and gas content creates an eruption that is
a.)non-explosive
b.)very explosive
c.)full of lava
d.)full of rock

Magma that is highly viscous with a high silica and gas content creates an eruption that is very explosive. The correct option among all the options that are given in the question is the second option or option "b". The gas content within the magma gives the huge explosive force. I hope the answer has come to your help.

Maybe a horizontal because its a pattern

Geothermic gradient is the rate of increasing temperature with respect to increasing the depth in the earths interior. away from tech tonic plates boundaries, it is about 25-40 c/km (72-87 degrees f/mi) of depth near the surface in most of the world.