The social changes in the United States in the 20th century gave rise to environmental laws concerned primarily with ________.
- management of private land
- the settlement of the West
- reducing pollution caused by industry
- preserving endangered species
- mining and homesteading
reducing pollution caused by industry
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The Zapatista rebellion in Chiapas (Mexico) coincided with the beginning of NAFTA and concerned the issue of
A) a peasant way of life. B) indigenous rights. C) globalization. D) exploitation. E) a peasant way of life, indigenous rights, globalization, and exploitation.
Surface currents are driven by thermohaline processes.
a. true b. false
What are dikes, sills, and laccoliths? What will be an ideal response?
An ecosystem that is stable is likely to have a
A) high percentage of "eury" species for the environmental conditions present. B) high percentage of "steno" species for the environmental conditions present. C) narrow optimal range for the environmental conditions present. D) high percentage of r-selected species.