Ptolemy's theory of planetary movements across the sky was based on
A) Naturalistic research.
B) Basic research.
C) A correlation implying causality.
D) An observed correlation between variables.
Answer: D
Political Science
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Which of the following countries did Israel invade in 1982?
a. Egypt. b. Syria. c. Lebanon. d. Jordan.
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The fact that we need to make sacrifices now to preserve forest ecosystems in order to prevent future problems makes forest conservation a(n) ______ problem.
a. sustainable economic development b. environmental governance c. time horizon d. international organization
Political Science