QUESTION: Fix punctuation: Raspberry PI and GPIO pins Control other devices from the serial port A pedestrian in the network
ANS: Raspberry PI and GPIO pins: Control other devices from the serial port - A pedestrian in the network

QUESTION: Fix punctuation: Most people have heard that a wise doctor in London identified the source of the cholera contagion by plotting the location of the victims on a map The clustering of the victims around particular wells revealed that cholera was spread through contaminated water
ANS: Most people have heard that a wise doctor in London identified the source of the cholera contagion by plotting the location of the victims on a map. The clustering of the victims around particular wells revealed that cholera was spread through contaminated water.

QUESTION: Fix punctuation: In Experiment 3 the students observe how acids react with carbonates
ANS: In Experiment 3, the students observe how acids react with carbonates.

QUESTION: Fix punctuation: Ludwig gave up and turned Jari over to a consortium of Brazilian businessmen generally from the So Paulo area led by Edmundo Barbosa da Silva
ANS:
Ludwig gave up and turned Jari over to a consortium of Brazilian businessmen, generally from the Sao Paulo area, led by Edmundo Barbosa da Silva.