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.
The O stars is the most luminous, then B, then A, F, G, K, and M stars are the least luminous_____ there must be a relationship between mass and luminosity.
During the age of contact the Spanish Empire and the French colonial Empire have claimed the most land in Texas.
Is that a stament or question?
