<span>Complex drainage systems to keep structures from flooding this works</span>
In hiding, I'd say first of all she missed her friends, her cat, and normal life. She also missed "riding her bike, hearing the birds sing, getting a fresh breath of air, and laughing out loud with her friends". (SOURCE: http://www.kawvalley.k12.ks.us/schools/rjh/marneyg/03_holocaust-projects/03_wright_anne%20frank.htm )
The Cotton Gin impacted the industrial revolution by speeding up the process of picking cotton seeds
I believe the answer is: b. <span> Ennis alerted his superiors to the existence of secret evidence but, when they ignored it, Ennis did not make the evidence public. He remained silent.
Withholding information usually is not the actions that taken by the honest individuals. Ennis actions indicate that He could receive something from the superiors that make him feel justified to stay silent rather than showing all the evidence to the public.</span>
The doctrine related to public education which was overturned by the Supreme Court decision in Brown v. Board of Education was the policy of B) separate but equal. This doctrine was overturned by referencing the equal protection clause of the Constitution which argued that equal protection of the law was afforded to all citizens regardless of race.