Polina participates in a short-term memory experiment. The experimenter reads aloud a list of twenty objects, and Polina has to mentally rate how effective each object would be if she was stranded on a deserted island. The experimenter then asks her to count backwards by threes from one hundred. This task, known as , ensures that Polina does not rehearse the information to keep it in her short-term memory. a. motivated forgetting
b. chunking
c. the Brown-Peterson distractor technique
d. the relearning method

question 1:

senate and house of representatives

i would try to answer the second question but i’m not 100% positive but i hope i

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