All of the Following Were Categories of the 1968 MPAA

question 15

Multiple Choice

All of the following were categories of the 1968 MPAA voluntary rating system EXCEPT

• A) G.
• B) M.
• C) PG-13.
• D) X.

---

Definitions:

Cultural Eutrophication

Over-enrichment caused by human activities, leading to excessive bacterial growth and oxygen depletion of a body of water.

Biogeochemical Cycle

The circulation of elements and substances through living organisms, the Earth, its atmosphere, and the oceans, contributing to ecosystem functioning and sustainability.

Phosphorus

A chemical element essential for life, involved in many cellular processes, including energy transfer and the formation of bones and teeth.

Biogeochemical Pathway

Cycles that involve the movement and chemical transformation of substances through biological, geological, and chemical processes on Earth.