Choose two diff erent pre-Industrial Revolution technologies and describe the burdens on society that resulted from them.
What will be an ideal response?
Students could invent their own scenarios here, but most likely, they will mention what the text does:
• Prehistoric Ages: Out-of-control fi res caused periodic but temporary changes in the landscape.
• Bronze Age: Smelting technologies required massive amounts of wood fuel, resulting in the destruction of up to four acres of forest per year in the Fertile Crescent, and smoke-fi lled air likely became a health or environmental problem.
• Iron Age: Since ductile iron was not discovered until the mid-twentieth century, Iron Age workers had to grind iron objects that had been cast. The inevitable breakages would have resulted in a considerable waste of materials, which would have tended to accumulate and likely have created one of the fi rst solid-waste disposal problems.
• Middle Ages: Emerging technologies increasingly fouled the air and water, and untreated human and animal wastes from increased populations contaminated water sources resulting in epidemics.
• Colonial Expansion Period: Manufacturers and merchants appeared to value gaining new resources and ignored the negative impacts on their colonies, such as slavery and environmental degradation.
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In semiarid regions, a metal strip called a(n) ____ can be placed on the roof to route runoff on the roof from doorways.
A. diverter B. chase C. valley D. inverter
What kind of line is the line identified as D shown in Figure 1?
a. Leader b. Cutting plane line c. Visible line d. Extension line e. Dimension line
Describe how control loops are used in process troubleshooting.
What will be an ideal response?
During the build-up to the Peloponnesian War, the Spartans and their allies claimed what about the Athenians?
a. The Athenians hoarded silver and impoverished the rest of Greece. b. The Athenian drive for imperial dominance violated the legitimate rights of other Greek states. c. The Athenian determination to conquer Persia drained Greece of desperately needed resources. d. The Athenians were secretly allied with Persia against the rest of Greece.