What aspect of plate tectonics is least understood and requires further research? question 3 options: a. the driving mechanism (what causes plates to start moving one direction and then stop or change directions) b. why melting occurs and what types of magmas are generated c. what types of earthquakes to expect in association with the different plate boundaries d. what types of mineral deposits are associated with particular tectonic conditions?

The incident command system (ics) is: a. most applicable to the management of complex incidents that extend over many hours or days. b. a military system used in domestic incidents to ensure command and control of federal resources. c. a standardized management tool for meeting the demands of small or large emergency or nonemergency situations. d. a relatively new approach created based on the lessons learned from hurricane harvey disaster operations.