31.3k views
4 votes
1. volcanologists monitoring st. helens in the weeks prior to the eruption were worried about what measured observation?

User Tes
by
8.3k points

1 Answer

5 votes
Could be sulphur dioxide levels rising ?
User SuperAndrew
by
7.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories