Answer:
Explanation:
Three political generals—Butler, Banks, and Sigel—held independent commands at the onset of this critical period. All had been appointed by Lincoln; all were in place as Grant assumed overall command.
Scientists are helping in various ways to understand how rocks in the core of the Earth helps in tectonic plates movement.
Explanation:
The movement of the tectonic plates in the core of the Earth helps to regulate the water cycle that is very important for the planet. Plate tectonic is based on various geological phenomenon that includes mountain buildings, earthquakes and volcanoes as well as continental drift.
Plates play an important role by acting like a hard and rigid shell than the Earth's mantle. The strong outer layer is referred as lithosphere. Through research scientists found various flaws in the atomic packing in upper mantle minerals that becomes widespread under oxidising condition and thus speed of seismic waves reduces.
Descartes discovers that the physical world does not exist, but because he can doubt the physicality of the world, he must exist.
Explanation:
In the second Meditation Descartes discovers that the Physical world is not real, or does not exist as it is believed to exist in its permanence. This would imply that Descartes himself does not exist in himself, as he is part of the physical world too.
<u>This leads him to think about his doubts too. The fact that he is able to doubt this existence means that he can see that his existence cannot be doubted. </u>
His existence is thus different from his physical existence.
Then the Latin phrase was come up with that is 'cogito ergo sum' or meaning 'I think, therefore I am.'
