Public accompaniment occurs when: a. a stimulus property that is only indirectly related to the tact relation avoids substandard verbal behavior. b. an observable stimulus accompanies a private stimulus. c. a stimulus that follows the behavior of interest decreases its rate of occurrence. d. two people move together in sync.

. b. An observable stimulus accompanies a private stimulus

Explanation:

In sociology, public accompaniment refers to the verbal effort that members of society make to correct a certain situation. For this to occurs, observable stimulus and private stimulus need to exist on the same time.

Example of this when people call 911 when they see an act of vandalism.

In that process, the act of vandalism is the observable stimulus and the push to call authorities to protect the property is the private stimulus.

1) d

2)c

3)b

4) a

5)c

6) c

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals