The physical process that leads to a reduction in the amount of arable land and crop output is .

The system of checks and balances was designed for what purpose? fear of strong state power to keep power out of one branch to appease the southern states to allow the judicial branch to have equal power

As american population grew between 1820 and 1850, the percentage of americans living on farms also grew. a.true b.false

Which statements accurately describe a country's currency? select all that apply. the currency is easily divisible. the currency can be used in any other country. the currency has a value that can change. the currency has denominations. the currency has a value that must stay the same.