The first 10 amendments to the constitution are known as
a.
article viii
b.
the preamble
c.
the magna carta
d.
the bill of rights

Amendments I through X of the Constitution are known as the Bill of Rights.  D is the correct answer.

The changes to agriculture in the united states since 1900 is that increased mechanization has increased food production, thereby increasing the need for labor. there has been an increased need for higher speeds of food production due the fact that the population in the united states continues to rise.