Which of the following readings is used to determine the availability of minerals? a.

radioactivity

b.

magnetism

c.

gravity

d.

all of the above

Please select the best answer from the choices provided

PUT ANSWER IN THE COMMENTS PLZZ

The correct answer would be option ¨D¨

Explanation:

trust me

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.

the american revolution was by the middle and upper class, and the french was by the lower and middle class.