Match the mountains with the plates involved. Andes
north america cordillera
appalachians
aleutians

two continents plates

one continental plate, one oceanic plate.

two oceanic plate

one island plateau, one continental plate

places of higher salinity. there are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. this evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. this causes the seawater to become denser.

brave new world, aldous huxley (1932)