Sometimes, the pyroclastic material that flows from a volcano is ...

[Evvie72]

Sometimes, the pyroclastic material that flows from a volcano is so hot that it fuses together to form a
  deposit known as ___________________ _. Fill in the blank(s) with the appropriate word(s).

Question 2

The type of volcano that is the most common in the two major volcanic belts on Earth is
  ___________________ _. Fill in the blank(s) with the appropriate word(s).

[momtoalll]

Answer to Question 1

welded tuff

Answer to Question 2

composite