A) The establishment of the National Park System
Answer:
Although there is not universal consensus regarding where the virus originated, it spread worldwide during 1918-1919. In the United States, it was first identified in military personnel in spring 1918. It is estimated that about 500 million people or one-third of the world's population became infected with this virus.
Explanation:
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The industry that helped producers sell their goods to a national market is :
Advertising
Advertising will promote the goods / services that offered by the producers to their potential buyers
hope this helps
ANSWER:
The Missouri Compromise, "The Compromise of 1850", and "The Kansas-Nebraska Act" 1854
The Missouri Compromise was for maintaining a balance between "Free states and slave states" in the Union.Accordingly, Missouri was acknowledged as a "slave state", Maine was acknowledged as a free state, and slavery was not allowed in Louisiana Territory territory North of 36°30' but within the borders of the Missouristate.
The Compromise of 1850 was essential to ascertain if slavery would be permitted in states formed from the territory got from Mexico during the "Mexican-American War". California was acknowledged as a free state, while the "Territory of New Mexico" permitted slavery. The Compromise also comprised a measure forbidding the slave trade (however not slavery as such) within the Columbia District and a new and more powerful Fugitive Slave Law
The Kansas-Nebraska Act 1854 created the "territories of Nebraska and Kansas" and stipulated that people of these territories would elect to as certain if the 2 territories would permit slavery. This led to violence between "anti-slavery and" pro-slavery proponents who moved to these territories.
Answer:
The answer is A.
all the other answers are sus