Scientists believe Asian people crossed the land bridge to come into the Americas.
a.
Alaska
c.
Beringia
b.
Asian
d.
Glacier

the answer is d. give brainliest if right.

ps is this 7th grade civics?

i know social security wasn't one.

explanation:

hope my answer has you!

the steam engine.

the locomotive.

the telephone.

the telegraph.

the internal combustion engine.

the rifle.

ironclad ships.

electricity/light bulb.

du boi was considered a radical because he wanted the immediate end for segregation. the biggest different between him and booker t. washington is that, even though washington believed that segregation should be considered illegal, he did not believe at all that a law was needed to keep blacks away from whites and that this would be something natural (to have the races apart) for a long time until society adjusted, while du boi believe that agitation was the only way to end segregation.