How did the land bridge from Siberia (in Asia) to Alaska (in North America)
form?
how did

The bridge "rose" from the ocean as vast amounts of ocean water became tied up in the enormous glaciers of the last ice age. That exposed the broad continental shelves now covered by the Bering Strait and created the land bridge. The bridge last arose around 70,000 years ago.

1) which is an example of active listening during a formal discussion the answer is d. responding to questions this proves that you were actively listening to the conversation being held in the discussion and that you also know about the topic being discussed2) finding the right balance in a formal discussion is primarily the answer is a. being activeyou want to actively take part of the discussion and prove that you are focused. able to understand what others are saying and make your own input