I assume you are referring to the enlightenment period. So the philosophies were reason, nature, happiness, progress and liberty. These were the five philosophies of the enlightenment era. <span />
<span>Based on his inaugural address, John F. Kennedy viewed responsibility as a core American value. Reading through his address, this is very obvious and the most famous quote he used in the address, "And so, my fellow Americans: ask not what your country can do for you; ask what you can do for your country." shows his core belief is responsibility of Americans.</span>
Ambush is all you have to say.
<u>Answer:</u>
C- The water was a constant shallow sea during that time.
This was happened to the Grand Canyon area during the Permian Age.
<u>Explanation:</u>
The Grand canyon consists of the most studied sequence and complete rock on earth. They are nearly 200 million to 2 billion of years old, of which most of them were deposited in shallow, warm seas and near the ancient and the sea shores which were long gone.
The youngest formation of rock in the grand canyon is the Kaibab Limestone, which was laid down during the Permian age by the advancing warm and shallow sea. Although, the areas climate has been changing constantly during recent times from cool and wet pluvial to semi arid conditions. And also, with less water to cut, the erosion has also reduced greatly.
A is the answer because the natives American tribes wanted a better life