Briefly state the role played by citizens, small business and civic groups in community planning

Answerdistinguish between the mercalli scale and the richter scale;

Ithink the answer is either a , c or d

Explosive eruptions are the most hazardous, involving large volumes of tephra and gases emitted from the volcano. lahars, pyroclastic flows, ashfall, and many other volcanic hazards are commonly associated with explosive eruptions. explosive eruptions are very dangerous. basically, any form of hazard can occur.