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4. What do the archaeological discoveries at East Wenatchee, Manis farm, and the Marmes dig

have in common?

A They prove that the land bridge theory is correct.

B They provide evidence that there were ancient hunters in Washington.

C They indicate that Native Americans arrived just before Europeans.

D They suggest that mastodons were hunted to extinction.

B. They provide evidence that there were ancient hunters in Washington.

Explanation:

These sites are all related to what is known as the Clovis culture. The Clovis culture is a prehistoric Paleoamerican culture that is considered to be the first culture in the Americas. Clovis people, therefore, are considered to be the ancestors of most of the indigenous cultures of the Americas. Because of the weapons that have been found in this site, we can conclude that there were ancient hunters in Washington.

the exclusive possession or control of the supply or trade in a commodity or service.

answer: in 1900, there were no "workplace safety laws"!

explanation: at the beginning of this century, workers in the united states faced remarkably high health and safety risks on the job.

a century ago in 1900 about three hundred out of every one hundred thousand miners were killed on the job each year.

[industria] developments occurred within a legal and regulatory climate that diminished employer’s interest in safety. as a result, americans developed production methods that were both highly productive and often very dangerous.