Question

Several kilometers from a volcano, a geologist observes an old lava flow made up of dark-colored basalt rock. The geologist infers that the lava must have had

a.
high silica content.
b.
high viscosity.
c.
low viscosity.
d.
medium viscosity.

Answer 1

it is low viscosity just got it right on the online school im doing.

Answer 2

I just took the test and the correct answer was C(low viscosity)