1. During the 1950s, what was a major factor that encouraged families to move to the suburbs? A. pollution in the cities
B. economic growth and prosperity
C. improved medical care
D. lack of jobs

With the increase of autos in the 1950s, the demand for good quality roads increased. The federal government passed the Interstate Highway Act, 1956, pumping $1 billion a year into the construction of roads. By 1960, $2.9 billion was being used a year. The construction encouraged urban sprawl, as more people could now live in the suburbs and drive the freeways into the cities for work. But it also marked the beginning of the end to the city as a livable location. The middle class left the city to live in the suburbs, urban neighborhoods were split into isolated residential islands walled off from each other by concrete abutments of the freeways. this might not help but here

Explanation:

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