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?

c.what types of earthquakes to expect in association with the different plate boundaries

Explanation:

tunami b/c it is near water

radiative zone

explanation    

radiative zone is the layer of the sun which energy is transferred away from the core by radiation. although, the core is the only part of the sun that produces an appreciable amount of heat through fusion. in fact, 99% of the energy produced by the sun takes place within 24% of the sun's radius.