1. what is the relationship between the ice age
climate and the land bridge between asia and the
americas?

2. what do scientists think is the reason that
people crossed beringia from asia to the americas?

1. Ocean levels were lower and that meant lower sea level. The lower sea level exposed a strip of land, connecting northern Easters Asia to what is now Alaska.

2. For a better food supply, these people were considered to be nomads.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others