Which of the following did william torrey harris believe to be an essential part of schooling?

Answer and Explanation:

William Torrey Harris was an influential educational philosopher and politician in the late 19th century, serving as the chief administrative officer of the St. Louis Public School from 1868 to 1880 and serving as an American education from 1889 to 1906. Commissioner. According to William Torrey Harris, punctuality is an essential part of schooling because readiness makes the students responsible for their work and their life.

answer: the answer is a. double jeopardy

explanation:

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.