How are food and oxygen produced during the process of photosynthesis?

Plants take in the light from the sun, water from the soil in the ground, and carbon dioxide from the air around it and converts it to food and energy for itself and oxygen for the animals and humans around it. This is often perceived as plants "breathing in carbon dioxide" and "breathing out oxygen".

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.