Answer:
Pivot – the point around which something turns
Beam – a wooden plank or solid rod that rests on the pivot
Load – the item or object being moved or lifted on the beam
Force – the effort or input needed to move the beam and the load
The answer is <u>"there is no control group".</u>
Control group, the standard to which examinations are made in an analysis. Numerous examinations are intended to incorporate a control gathering and at least one test gatherings; actually, a few researchers save the term try for think about outlines that incorporate a control gathering.
Ideally, the control group and the experimental groups are indistinguishable inside and out with the exception of that the trial bunches are subjected to medications or interventions accepted to affect the result of intrigue while the control group isn't.
And the United States is naturally well-endowed with coal resources—25 percent of the world's coal reserves are within our borders. Coal has been the leading electricity source worldwide, and over the past 10 years it has supplied one-half of the increase in global energy demand, growing even faster than renewables.
He believed in the greek religion known as hellenism. Hope this helped
