The rapid growth of california during the gold rush made the demand for an urgent one.
a. a transcontinental railroad
b. a transcontinental canal system
c. an interstate highway
d. an additional oregon trail

How do nicotine and tobacco cause cancer? by decreasing blood-sugar levels by damaging or changing a cell's dna by increasing heart rate by increasing phlegm and mucous production

Lina went camping in the woods. while camping, she accidentally touched a strange plant. her hand immediately started itching, and her skin erupted in hives. after she got home, her grandmother cooked some oatmeal, wrapped it in a cloth, and put it on lina’s affected hand. lina’s grandmother followed a traditional remedy.

Health is as much a social as a biological concern. analyze whether or not healthcare is equally accessible to people belonging to all strata of american society. what steps has the us government taken to address this problem? suggest one measure that can lead to a comprehensive solution to this problem.