The Department of Transportation, for example, requires that recipients of its funding award a percentage of contracts to minority-owned businesses and many large companies have goals for buying from minority-owned suppliers. The reason for such mandates is twofold.
A coastal zone is the interface between the land and water. These zones are important because a majority of the world's population inhabit such zones. The tidal bulges result in a rhythmic rise and fall of ocean surface, which is not noticeable to someone on a boat at sea, but is magnified along the coasts. 2  Usually there are two high tides and two low tides each day, and thus a variation in sea level as the tidal bulge passes through each point on the Earth's surface.
The sea shapes the coastal landscape. Coastal erosion is the wearing away and breaking up of rock along the coast. Destructive waves erode the coastline in a number of ways: 1  Hydraulic action.