Answer:
D.
Explanation:
Under the Onís-Adams Treaty of 1819 (also called the Transcontinental Treaty and ratified in 1821) the United States and Spain defined the western limits of the Louisiana Purchase and Spain surrendered its claims to the Pacific Northwest. In return, the United States recognized Spanish sovereignty over Texas.
Answer:
It suggests that the rapid transfer of plants, animals, and disease may have unknown effects.
Explanation:
In this text, the author tells us that the way plants and animals are transferred globally nowadays is an event that has never been seen before in the history of the world. The author uses this phrase to show how unprecedented this event is. The purpose of showing this is that it suggests that such a transfer might have effects that we cannot imagine or predict.
Answer:
John Brown was a man of action -- a man who would not be deterred from his mission of abolishing slavery. On October 16, 1859, he led 21 men on a raid of the federal arsenal at Harpers Ferry, Virginia. His plan to arm slaves with the weapons he and his men seized from the arsenal was thwarted, however, by local farmers, militiamen, and Marines led by Robert E. Lee. Within 36 hours of the attack, most of Brown's men had been killed or captured.
Explanation:
Answer:
C
Explanation:
Today, McCarthyism refers to a "witch-hunt" as Senator McCarthy led a witch hunt against purported communists in the US.
It would be "rope" that led to the closing of the open range, as farmers started to close off their land to other people and cattle. Barbed wire was not generally used.
