Compared with the us constitution, how difficult is it to amend state constitutions?

The Constitution is difficult to amend because it requires a supermajority of either members of Congress or a supermajority of state legislatures to propose a new amendment for ratification. Even after acquiring the requisite two-thirds of either group to propose the amendment, it then has to be ratified by 75 percent of the states, either by their legislatures or state Constitutional conventions.

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.