Why did Beringia exist?

• A. The oceans were lower, there was more land
• B. The oceans were higher, there was less land
• C. It was a myth
• D. It formed due to tectonic plate movement

Answer: (A)

Exposure of land during the last ice age due to lower sea levels created a land bridge between Asia and North America. When massive ice sheets locked up water, global sea levels fell, exposing the route now known as Beringia. This land bridge allowed migration and connections between the continents, and it existed only during those periods of low sea level; as glaciers melted and seas rose, the bridge was submerged. So, the oceans being lower and more land being exposed is why Beringia existed. The other ideas don’t fit: higher oceans would mean less land, it’s not a myth, and it wasn’t primarily formed by tectonic plate movement.