D. The Grand canyon's layers get older from bottom to top
The deeper you go, the older the layer
Answer:
The Modern Use of mechanized farming has drastically reduced the cost of production with more revenue income for farmers. It help enhances the level of quality of production with more productive yields and efficient farming operation.
It granted citizenship to all people born or naturalized in the United States equal protection of the laws. Not only did the 14th amendment grant citizenship but also extended liberties and rights by the Bill of Rights to former slaves. (source was Google ;) )
It was the last battle that led to the end of the American Revolution :)
