SOLAR SYSTEM

Detailed explanation-1: -Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions. He called his hypothesis continental drift.

Detailed explanation-2: -From about 300-200 million years ago (late Paleozoic Era until the very late Triassic), the continent we now know as North America was contiguous with Africa, South America, and Europe. They all existed as a single continent called Pangea.

Detailed explanation-3: -By the late 1960s, plate tectonics was well supported and accepted by almost all geologists. We now know that Wegener’s theory was wrong in one major point: continents do not plow through the ocean floor.

Detailed explanation-4: -In 1912, German scientist Alfred Wegener proposed that Earth’s continents once formed a single, giant landmass, called Pangaea.

Detailed explanation-5: -Wegener called this ancient continent Pangaea. Other scientists had proposed that such a continent existed but had explained the separation of the modern world’s continents as resulting from the subsidence, or sinking, of large portions of the supercontinent to form the Atlantic and Indian oceans.

Detailed explanation-6: -Although Pangaea is a hypothesis, the idea that all the continents once formed a single supercontinent makes sense when you look at the shapes of the continents and how well they essentially fit together.