The worst volcanic disaster in U.S. history occurred when which mountain erupted?

The worst volcanic disaster in U.S. history occurred when which mountain erupted?

The worst volcanic disaster in U.S. history occurred when which mountain erupted?





a. Mt. Pinatubo

b. Mt. McKinley

c. Mt. St. Helens

d. Mt. Everest

e. Humphrey's Peak








Answer: C