Which Has the Longest Residence Time

question 79

Multiple Choice

Which has the longest residence time?

• A)Groundwater
• B)Rivers, lakes, and streams
• C)Polar ice caps and glaciers
• D)Rainwater

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Definitions:

Pineal Gland

A small endocrine gland in the brain that produces melatonin, a hormone that regulates sleep-wake cycles.

Biological Clock

An internal mechanism that controls the timing of biological functions and behaviors, such as sleep, metabolism, and reproduction.

REM Sleep

A phase of sleep characterized by rapid eye movements, more dreaming, and bodily movement; considered important for emotional and cognitive restoration.

Non-REM Sleep

A phase of sleep characterized by slower brain waves and reduced eye movement, distinct from REM (Rapid Eye Movement) sleep.