locks are important so that bouts can go up and down hills and dams are importan to stop flooding
there are 29 locks and dams
Dams - yes, locks - no
4,000
It has many dams which are passed using locks
they are important
Newton's Apple - 1983 Blood Typing Locks and Dams Moles Penguins 10-12 was released on: USA: 26 December 1992
something that locks doors
Locks are built to raise and lower ships , also to control water levels, so there are some locks that also have dams nearby.
none There are probably about 29 dams.
dams
essential component of the U.S. infrastructure because of its use in the construction of highways, airports, river locks and dams, railroad ballast, and breakwaters.
they eat grass and use wood from trees to make their dams and their dams are very important to them