Jill's friends tell her they think she has a really good memory. she finds this interesting so she decides to purposefully test her memory. jill receives a list of to-do tasks each day at work. usually, she checks off each item as the day progresses, but this week, she is determined to memorize the to-do lists. on monday, jill is proud to find that she remembers 95 percent of the tasks without referring to the list. on tuesday, her memory drops to 80 percent, and by thursday, she is dismayed to see her performance has declined to 20 percent. jill does not realize that she is demonstrating a natural mechanism of memory known as: a) anterograde amnesia b) episodic buffering c) chunking d) proactive interference

. austria-hungary began seizing british colonies in africa.

prime rate/ credit history apex

the first question's answer is a.

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