Match these items. 1. isostasy subduction 2. deepest ocean depths fjord 3. drowned glaciated valley trench 4. theory of crustal structure plate tectonics 5. oceanic plate going down buoyancy

Match these items. 1.isostasy subduction 2.deepest ocean depths fjord 3.drowned glaciated valley trench 4. theory of crustal structure plate tectonics 5.oceanic plate going down buoyancy

i pick 4. theory of crustal structure plate tectonics.

1. buoyancy

2. trench

3. fjord

4. plate tectonics

5. subduction

i think its 5049.

i hope this !