He was an entrepreneur and inventor who devised a way to drill through rock more easily to access oil underground.
A) Benjy Brooks
B) Michael DeBakey
C) Howard Hughes, Sr.
D) Walter Cunningham, Sr.

Aheard of sheep moves up in the mountain to graze during summer and migrated to the valley during winter what type of migration do the sheep follow

How did the mexcian war of independence differ from the american revolution?

The service industry in the united states grew in the late 1800s. what was one effect of that growth? the number of people with jobs in factories as unskilled workers decreased. the number of people with jobs in factories as unskilled workers increased. the middle class grew as people took jobs as clerks, lawyers, and teachers. the middle class shrank as people left jobs as clerks, lawyers, and teachers.