Employing ________, researchers have revealed a huge area in the Purus region of the Amazon rainforest that was home to perhaps 60,000 inhabitants in the thirteenth century.

a. Chemical analysis of the soil.
b. Sonar technology.
c. Scuba divers' observations.
d. Aerial photography.


d. Aerial photography.

History

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The immediate need to protect the revolution from enemies, real or imagined, from across the spectrum of French political and social life manifested itself in what became known as the _____________

Fill in the blank(s) with correct word

History

What were the most important advances in Hellenistic technology?

What will be an ideal response?

History

The first major government affirmative action program, the Philadelphia Plan, applied to _______________.

A. college admissions at the University of Pennsylvania B. Philadelphia businesses that held contracts with the federal government C. promotions in state and federal governmental offices and agencies in Philadelphia D. the hiring of elementary and high-school teachers in Philadelphia schools relying on federal funding

History

Between 1898 and 1903, the American economy was increasingly dominated by __________.

a. multinational corporations b. a small number of very large firms c. government-owned industries d. small start-up companies

History