The Clean Water Act, Which Was Passed in 1972, Was

question 484

Multiple Choice

The Clean Water Act, which was passed in 1972, was substantially amended in:

• A) 1977
• B) 1986
• C) 2000
• D) both 1977 and 1986
• E) both 1976 and 1987

---

Definitions:

Motor Neurons

Neurons that transmit impulses from the spinal cord or brain to muscle or glandular tissues, facilitating movement and action.

Glial Cell

Nervous system cell that provides insulation, nutrients, and support and that aids in repairing neurons and eliminating waste products.

Neuron

A nerve cell that is the basic building block of the nervous system, responsible for transmitting information throughout the body.

Central Nervous System

The section of the nervous system that includes the brain and spinal cord, tasked with assimilating sensory data and reacting appropriately.