Question

How do historians know that the Bering Strait land bridge froze and allowed for the migration into North America?

a.
It’s a theory that is not supported by any concrete evidence.

c.
Scientists have found carvings of early civilizations in rocks that have been underwater for thousands of years.

b.
Radiocarbon dating of materials in the surrounding area supports the idea.

d.
Historians have discovered documents written by these migrants that support facts about their arrival to North America.

Answer 1

give me a min

Answer 2

kayyy !

Answer 3

http://answers.yahoo.com/question/index?qid=20110725143027AADe3Qq

Answer 4

that is soo much reading !
did you get anything out of it?

Answer 5

my school well not let me go on that site

Answer 6

oh , lmfaoo thanks anyways sweethearrt!

Answer 7

your welcome

Answer 8

(:

Answer 9

:P