Africa is located to the southeast of the United States and across the Atlantic Ocean.
South America
First, if you cross the Pacific Ocean, you are going west, not east. Second, even if you could go east across the Pacific Ocean from the Americas, you would travel in a circle and visit every continent. Therefore, the answer is: All the continents.
Antarctica
the 2 oceans are the Indian ocean and Atlantic ocean.
Australia is the continent that is bordered by every ocean except the Atlantic Ocean. It is surrounded by the Indian Ocean to the west and south, the Pacific Ocean to the east, and the Southern Ocean to the south.
South of the Pacific, Atlantic and Indian Oceans is Antarctica. It is the only continent without any permanent inhabitants.
Africa is more east than southeast. But it is across the Atlantic. The eastern part of South American juts out southeast of the USA. And technically the Atlantic Ocean is between them. And Antarctica is way down at the bottom!
The Atlantic is east of North America. It is the ocean that separates the American continent, north & south, from Europe & Africa.
Africa, Europe, North America and South America all have contact with the Atlantic Ocean.
To answer your question specifically, neither continent is closest since both South America and Africa border the Atlantic Ocean.More informationThe Atlantic Ocean, the second largest, extends from the Southern Ocean between South America, Africa, North America and Europe, to the Arctic Ocean. The Atlantic meets the Indian Ocean south of Africa at Cape Agulhas.
North America and South America are west of the Atlantic. North America is west of the North Atlantic Ocean and South America is west of the southern part of it.