What is the energy source plants and animals must use in order for our cells to work properly?

ATP

Explanation:

ATP is a molecule made of a nitrogenous bases adenine and three phosphate groups which help store energy in the second and third groups

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.