Answer:
The Battle of Gettysburg, fought from July 1 to July 3, 1863, is considered the most important engagement of the American Civil War. After a great victory over Union forces at Chancellorsville, General Robert E. Lee marched his Army of Northern Virginia into Pennsylvania in late June 1863.
Explanation:
Louis and Clark found the discoveries of the west staggering. They saw that the land was stable for future agriculture, and contained many mineral deposits. Seeing that the land was economically stable, they found the purchase to be a great deal. This lead to the Louisiana Purchase. Honestly (this is just my opinion), I don't think that geography had an impact on the Monroe doctrine , but the Monroe doctrine had an impact on those who settled since it
asserted that the Americas were not to be further colonized by European countries but that the United States would neither interfere with existing European colonies nor meddle in the internal concerns of European countries.
Grain farming is done economic activity and this makes it comerical.
Answer:
Radioisotopic dating as a new technology has really helped to determine the age of the earth.
Explanation:
The actual age of the earth has been a subject of wanton speculation among different groups of people. Speculations arise from religious, cultural and philosophical perspectives.
However, studies using many radioactive isotopes believed to be present from the origin of the Earth and having extremely long half lives have been most helpful in determining the age of the earth. Radioisotopic dating is a common technique used to determine the age of ancient artifacts. It has shed a great light on the possible age of the earth.
Hence the application of radioisotopic dating as a new technology has really helped to determine the age of the earth.
Because of the moving liquid below earths mantle
