In the interior of continents the earth's crust is typically about 40km thick and the elevation is near sea level. In an area where the crust is 20km thick, isostasy would suggest the elevation in this area would be unless the density changes from one area to the other.

Based on your knowledge of industrialization, which of the following statements best describes what is happening in this photo taken in the us around 1910? a. the children pictured here likely worked a 4 - 6-hour shift after school, five days a week, for minimum wage. b. the children pictured here are working illegally, as child labor was prohibited in the late 1880s. the children pictured here likely worked a 12-hour day, six days a week, for about one dollar a week d. the children pictured here likely earned good wages, were protected from risk of injury, and were likely to have a successful, long-term career in this industry.