Which ostrilopes were more likely to survive and become more common in the population? Which ostrilopes were less likely to survive and become less common in the population?

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.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.