To cross the bay bridge in san francisco, the magic number of riders in a vehicle is three. this allows the car to utilize the carpool lane, thus avoiding clogged freeways and backup at the bridge's tollbooths.
casual carpool, a decades-old hitchhiking system, is outdoing uber, lyft, and waze.
according to a transit study concerning people that use casual carpool, more than 6,000 people use the system per day.
the median wait time for riders at a casual carpool stop is 2 1 2 minutes.

describe the population and sample for this study scenario.

i am a priest who cares deeply about the church. i have been called here to explain my views on indulgences and other proposed reforms. i would like to explain why my views are consistent with the bible and are correct.

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

which of the following is a subsurface event that takes place during the rock cycle?