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Which of the following statements is not true about regions? a.) regions have fixed boundaries that are determined by the region's inhabitants. b.) a region can be defined by physical characteristics, such as climate, landform, and vegetation. c.) regions can change over time. d.) a region can be defined by human characteristics, such as language, government, and economic activity. e.) the same location can be considered part of multiple regions.

Which group’s rights—human participants or nonhuman animals—are the most important to protect? why? not really a right or wrong answer, but give a detailed explanation

Compare and contrast the environmental consequences of reliance on coal with reliance on petroleum.