What Is the Most Ecologically Responsible Way to Dispose of Sewage

question 71

Multiple Choice

What is the most ecologically responsible way to dispose of sewage sludge? 

• A) deposit it into conventional landfills 
• B) dump it into the deep trenches of the ocean 
• C) treat it with heat to kill harmful bacteria and remove toxic metals, and then use it as fertilizer 
• D) incinerate it

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Definitions:

Sleep Dystonia

A disorder characterized by abnormal muscle tone and spasms occurring during sleep.

Caffeine

A stimulant commonly found in coffee, tea, soda, and chocolates, known to affect the central nervous system by increasing alertness and reducing fatigue.

REM Sleep

A phase of sleep characterized by rapid eye movement, during which vivid dreams commonly occur.

NREM Sleep

Non-Rapid Eye Movement sleep, characterized by slower brain waves, minimal dreaming, and deep physical relaxation; constitutes the majority of sleep time.