The Japanese Islands are a result of two oceanic plates converging upon each other. What geological features are associated with an oceanic-oceanic plate boundary collision? a
trench, mountains, and subduction zone
b
subduction zone, rift valley and earthquakes
c
island arc system, trench and subduction zone
d
rift valley, volcanoes and earthquakes

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

What are the choices?