Tysm for helping please help

Atreatment for stuttering in which the person is asked to speak in a singsong fashion, usually with the aid of a metronome is

Ssignment 4: contemporary issues in modern police operations and the policing due week 10 and worth 180 points select one to two (1-2) contemporary issues in modern police operations and examine the related law enforcement agencies, change, and efficiency.

What greek scientist created a screw to move water for irrigation?