Answer:
The Colorado River began carving through the layers of volcanic rock and sediment, forming the Grand Canyon.
Explanation:
No they were not based on this
The 1930's were famous for being the age where color had just been introduced and musicals were popular during this time as well, so D.
Answer:
Athens
The Parthenon is the centrepiece of a 5th-century-BCE building campaign on the Acropolis in Athens. Constructed during the High Classical period, it is generally considered to be the culmination of the development of the Doric order, the simplest of the three Classical Greek architectural orders
The conclusion is that although a US president can technically send troops into a foreign country, in order to lawfully declare war, he or she must get the approval of Congress.