Which of the following is formed at a collision zone? continental rift valleyvolcanic island chainmountain rangedeep-ocean trench

All these landforms can be found at collision zones. they depend on which type of collision, though. there are oceanic-oceanic collision, oceanic-continental collisions, and continental-oceanic collisions. oceanic plates are dense and small, and continental plates are massive, but heavy. i hope this answer helped you.

10.063g / 10.00 ml = 1.0063 g/ml which rounds off to 4 sig figs as: 1.006 g/ml

What are the choices?