On May 18, 1980, the volcano Mount St. Helens in Washington State ...

[P68T]

On May 18, 1980, the volcano Mount St. Helens in Washington State erupted, devastating life and landscape for over 200 mi2 through ash falls, lahars, and other pyroclastic deposits.
 
  Explain how the eruption (part of the geosphere) affected the atmosphere and hydrosphere.
  What will be an ideal response?

Question 2

Match the rock type with the correct definition.
 
  A) Rocks that form from the crystallization of molten material
  B) Rocks that form when a pre-existing rock is altered due to heat and pressure
  C) Rocks that form from pre-existing materials going through lithification
 
  1) Igneous
  2) Sedimentary
  3) Metamorphic

[aprice35067]

Answer to Question 1

Answer: The eruption ejected large quantities of ash and gases into the atmosphere and significant geologic debris into the nearby lakes and rivers (hydrosphere).

Answer to Question 2

Answers: 1) A 2) C 3) B