POPs Such as Dioxins and PCB's Are Transported into Arctic

question 44

Multiple Choice

POPs such as dioxins and PCB's are transported into arctic ecosystems and food chains by

• A)global air patterns and then deposited on snow from where they enter streams and plankton.
• B)being eaten by fish when toxic materials are dumped into oceans.
• C)local industries run by native people which use toxic chemical processes.
• D)ocean currents which contaminate local streams.

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Definitions:

Galactosemia

A rare genetic disorder characterized by the inability to metabolize the sugar galactose properly, leading to various health issues.

Pectin

A soluble fiber found in the cell walls of fruits and vegetables, used as a gelling agent in foods and potentially beneficial for gastrointestinal health.

Carbohydrates

Organic compounds, including sugars, starches, and cellulose, that are a major source of energy for the body.

Diaphragm

A muscular and membranous partition separating the thoracic cavity from the abdominal cavity, playing a major role in breathing.