When did Wallace and Darwin go on their research expedition

galapagos island

Explanation:

they went here in 1835 and it allowed darwin to formulate his ideas on natural selection

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the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.