About how many years ago was the bering land bridge said to have formed? answer 225 million 225,000 250,000 22 million

The correct answer is : 22 million

Explanation:  The bridge ran from the tip of Siberia, western Alaska and most of the Bering Sea. The bridge was formed in two periods. It was useful for plants and animals to migrate and probably also human beings, it is possible that tribes of Asia had crossed the bridge.

d.summerains, the last one

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.