Answer:sand dunes
Explanation:
They are man made barriers, made of sand, to protect the coast from erosion from the incoming waves. They also help to control flooding from storm surge.
i think the answer would be "in both eastern and western hemispheres"
Not sure if you still need it but the answer is (c) new cities were built along the shores of the Great Lakes.
It would be Puerto Rico, though it is not a state, it is still part of the U.S. Hope it helps!
Answer:
Mikhail Gorbachev
Explanation:
Due to the glasnost and perestroika policies, whose aim was to increase transparency in governmental institutions in the Soviet Union, that were implemented by him.
