Author Question: An ash fall occurs when volcanic ash is ejected into the atmosphere and settles to the surface. ... (Read 28 times)

TVarnum · **on:** Jul 15, 2018

An ash fall occurs when volcanic ash is ejected into the atmosphere and settles to the surface. Indicate whether the statement is true or false.

Question 2

A lava tube is a hollow space left when the lava within a flowing tube drains away, leaving only the
outside as hardened rock. Indicate whether the statement is true or false.