1. what do most archaeologists think was the reason that the first people crossed
beringia?
a. they were following game.
b. they were searching for gold and gems.
c. they were looking for a warmer climate.
d. they were looking for fertile farming land.

They were following game.

Option: (a)

Explanation:

It is believed based on blur evidence that the first human beings that walked past Beringia to reach the continent of present-day North America accomplished the feat around 30,000 to 15,000 years ago.

The archaeologists believe that there must have been no solid reason for these people to have crossed Beringia and they must only have followed their habit of moving more and more eastwards in search of food.

the answer to your question is:

strong-mayor system

offline recommendation systems option b

because recommendation systems produce a list of two ways

1. through collaborative filtering

or

2. through content-based filtering