How Is an Oxygen Sag Curve Created

question 86

Multiple Choice

How is an oxygen sag curve created?

• A) The use of unlined landfills, household chemicals, mining refuse, and industrial discharges affects oxygen concentration.
• B) The breakdown of biodegradable wastes by bacteria depletes dissolved oxygen.
• C) The production of bacteria from livestock and food-processing wastes, and excess salts from soils of irrigated cropland absorbs oxygen.
• D) The erosion of sediments and runoff of toxic chemicals react with oxygen.
• E) The use of animal feedlots, food-processing facilities, and paper mills depletes oxygen levels.

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Definitions:

Electrical Impulses

Signals generated by nerve or muscle cells to communicate and facilitate bodily functions.

Electrodes

Devices that conduct electricity, often used in medical treatments or equipment to record or stimulate electrical activity in the body.

Electrocardiogram

A test that records the electrical activity of the heart to identify irregularities in heart rhythm and structure.

Electrical Impulse Sensors

Devices used to detect and measure electrical signals, often utilized in medical diagnostics and monitoring.