(pick two) if i explore two oceanic plates at a divergent boundary i will observe:

earthquakes
faults
ocean formation
mountains
island chains
seafloor spreading

your answer is:

ocean formation

island chains

seafloor spreading

(i know i picked three but i think these are the right answers)

ocean formation, island chains, and seafloor spreading.

Explanation:

It is actuall radiation

Explanation: heat radiates through space you need air to carry temperature for convection so it is wrong