What is immigration? A. When animals are bom in an ecosystem
B. When animals die in an ecosystem
C. When animals move into an ecosystem
D. When animals leave an ecosystem

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.

nucleus

would be most reasonable answer tbh