In the periodic table, elements are classified as according to their properties and their specific location within the periodic table.

metals

Explanation:

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.

the backbone of the dna and rna compound is sugar phosphate.