Answer:
Well based on the fact that the very first patented rock crushing machine was made in the year 1830, and the first successful, Eli Whitney Blake's, was in 1858, I'd say the development process was around 30 years.
Answer:
<em>Many students who want to study in the United States can go with a student's visa, which is classified as non-immigrant status. </em><em>This visa does not allow a foreign student to become a permanent resident of the United States of America, however.</em>
<I HOPE IT HELPS YOU>
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Answer:
[See Below]
Explanation:
✦ The Boston Massacre and why they open fired:
✧ They open fired because the colonists were throwing things, insulting them, and pretty much getting extremely violent, so they open fired because they felt threatened and at risk for their lives. Yet this wasn't the only brawl. There were many before this but they lead up to this.
✧ The reason the crowd was so angry and the brawl started was because days before a boy was shot by a British loyalist, who accidently shot him when being attacked by a mob.
~<em>Hope this helps Mate. </em>
The answers are 3. Mechanical union and 4. Industrial union
Hope I helped!