that is false
yes they do occur along divergent boundaries
Trenches occur at convergent boundaries when one tectonic plate which is more dense, is pushed beneath another tectonic plate that is less dense. This process is called subduction. Usually where divergent boundaries in the earth's crust are. When faults move apart, they create trenches.<-- no divergent boundaries in the ocean create mountain ridges not trenches http://upload.wikimedia.org/wikipedia/en/a/a4/SubZone.jpg
plant boundaries move together
Subduction doesnt occur at divergent boundaries, but rather they are found at convergent boundaries.
Volcanoes can be formed on both convergent and divergent boundaries.
Ocean ridges
Divergent
rift valleys
No. Sea floor trenches are found at convergent boundaries. divergen boundaries form mid-ocean ridges.
Divergent plate boundaries n_n ;*
No. They can also occur on continents.
transform and divergent