Active.
Passive continental margin.
Passive
The east coast of North America, west coast of africa
No, the east coast of the United States is in the middle of the of the North American plate. The eastern most part of the North American plate boundary is in the middle of the Atlantic Ocean in an area known as the Mid-Atlantic Rift. The north western coast of North America (Oregon, Washington, Canada and Southern Alaska) are subduction zones.
The east coast of South America along the Atlantic Ocean is a passive continental margin. This means that it is not located along a tectonic plate boundary where significant tectonic activity such as earthquakes or volcanic eruptions occur. The passive margin formed when South America separated from Africa during the opening of the South Atlantic Ocean.
the west coast is surrounded by the Pacific ocean which has an active margin tectonically. There is more volcanic activity due to the Pacific rim of fire. The East coast has the Atlantic ocean which has a passive margin thus not much tectonic activity. In the west coast, the Pacific plate subducts beneath the North American plate which causes faulting, folding, and wrinkling of the north american continental crust hence the earthquakes.
"The coast was battered by the cyclone." or "The coast is being battered by the cyclone."
The West Coast of the United States represents an active continental margin where tectonic plates are colliding. This region is characterized by land formations such as mountain ranges, earthquakes, and volcanic activity.
The coast is being battered.If you want to add the agent you say by a cyclone.The coast is being battered by a cyclone.
America is over 3,000 miles long coast to coast.
the east coast of South America
No. Not all plate boundaries are at the edges of continents, nor do all edges of continents correspond with plate boundaries. Many plate boundaries are found in the middle of oceans, while the continent of Africa is being torn apart by a developing plate boundary. Some edges of continents, such as the west coast of South America are near plate boundaries. These are called active continental margins. Others, such as the east coast of North America, are nowhere near plate boundaries. These are called passive continental margins.