What is the president’s primary duty as chief executive?

implement policy,

supervise the executive branch of government,

prepare executive budget for submission to congress, and

appoint and remove executive officials.

Explanation:

implement policy, supervise the executive branch of government, prepare executive budget for submission to congress, and appoint and remove executive officials.

hygrometers and hair thermometers (often found as part of hygrometers/psychrometers) can be used to measure humidity. barometers are used to measure atmospheric pressure, while anemometers are used to measure wind speed. so the 2nd and 4th choices should be the correct answers.