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14 Feb 2023

Question 2

Which of the following most completely defines a volcano?

 

A. a ridge system between two diverging plates through which magma escapes

B. a partly molten region of Earth's mantle where subducting rock is melted

C. a vent or hole in Earth's surface through which melted rock or ash erupt

 

Question 3

____ is the thickness of a liquid or its resistance to flow.

 

A. Mafic

B. Liquefaction

C. Viscosity

 

Question 4

When magma has a high viscosity, how is it most likely to erupt?

 

A. quietly

B. explosively

C. constantly