I believe it's the steam engine unsure with out answer choices <span />
Answer: Event Recording
Explanation:Event recording can be defined as a process by which an observer documents the number of times a behavior occurs. A tally/document is used by the observer using event recording for recording each time a student/individual involved in a target behavior. It should also be noted that the duration in which the behavior is being observed is recorded by the observer .
Answer: It is a belief of profitable trading known as commercialism.
Explanation:
Explanation:
The roman empire became difficult for one central authority to govern because of its size. ... Constantine was the ruler of the western part of the empire and he moved the capital because the eastern part could be easily more governed from Constantinople.
The placebo effect is a procedure in which a patient is made to believe that a drug has a direct on the person. Therefore improving his/her symptoms from the said disease that he/she is experiencing. It is directly injecting or making a procedure using alternatives. The idea is that the patient would believe such measures were done and that they will be cured from their diseases. There are no video clips available on you questions but I hope this helps.