What other compounds were extracted along with caffeine in the hot water extract(tea) and how were these compounds separated from caffeine?

answer; i do believe the correct answer is (river); /// good luck

its first and third is your answer i did the qustion the fourth isnt right

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

answer seismograph;