A sand dune is a Constructive force.
some examples are sand dunes,mudslides,or earthquakes.
they are actually both because they help the water to not get on shore and flood the town
Pain can be instructive if you are able to learn from it.
that's a good question but the anser is definatly in the question ,in my opinion their both constructive yes as they b uild up over time and destructive definatly to little seaside towns as i live beside one
The word that has the definition for providing information instructive is "educational."
instructive
Seif dunes and star dunes in Algeria
Large piles of sand are called dunes.
There are LARGE CRYSTALS....
There are only two sand dunes in Michigan. The two sand dunes are Sleeping Bear Dunes and Sliver lake sand dunes.
Fore dunes and back dunes but mostly fore dunes.