The judiciary act of 1789 a. gave the president power to appoint judges. b. was declared unconstitutional in the mcculloch v. maryland case. c. allowed john marshall to become the chief justice. d. gave the supreme court the power to hear special cases.

The office of Chief Justice did not exist prior to the Judiciary Act of 1789 and established the office. This in turn allowed John Marshall to become the chief justice. The other options, while true in history, are not related to the Judiciary Act of 1789.

The answer is C

B. it promoted the powers of the executive branch

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.