Marisa asks, "how can i best get my 8-month-old baby to sleep well? " her doctor should "put your child to bed lovingly." "co-sleep." "pick your child up whenever she wakes up and cries." "don't co-sleep." next

The answer is: put your child to bed lovingly.

Small infants tend to unable to sleep well if they don't feel safe in the environment around them. Putting the child to bed lovingly would inform the infants that they are loved and protected in their environment.

Co-sleep indeed provide the same sense of security, but it is not recommended for young infants because the parents could easily roll over during their sleep and crush the infants in the process.

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