Ed is caring for his mother, who has dementia. he feels awfully burdened by the daily responsibilities, and looks forward to his weekly meeting with other people who are also caring for elderly parents. during these gatherings, they share a meal and stories about what has happened that week in their caregiver roles, sharing information about what has worked and expressing their frustrations. ed is participating in

   A support groups for caregivers

Explanation:  What Ed and all those in the care of people with dementia and similar mental illness go through, is very stressful and requires a lot of enthusiasm and energy. That is why there are support groups where people with similar or the same stress duties can share their experiences. The point of such gatherings is that people who care for people with mental illness can best understand each other. Then they talk about their stressful experiences, understanding each other which is very important, and this helps to reduce the accumulated stress and gather the energy needed to perform these stressful duties further.

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