At a convergent boundary.
A subduction zone is formed
A metamorphic rock is most likely to form in an earthquake zone.
Close to a tectonic plate subduction zone, a tectonic spreading zone or a localised 'hot spot'.
A cold front.
Igneous for sure. Also metamorphic.
Littoral zone.
Iron.
Personal Zone
The littoral zone
4
in the tropics
Most likely.
splash zone