A Doppler Red Shift Indicates

question 52

Multiple Choice

A Doppler red shift indicates

• A) a shift toward lower frequencies.
• B) a shift toward shorter wavelengths.
• C) that a light source is approaching relative to the observer.
• D) none of these.

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Definitions:

Moisture

The presence of a liquid, especially water, often in trace amounts in the environment or substances.

Food Passage

The process by which food moves through the digestive tract, starting from ingestion into the mouth and continuing through the esophagus, stomach, and intestines until waste is excreted.

Air Passage

The path through which air moves into or out of the respiratory system, including the nose, throat, and lungs.

Respiratory Organ

An anatomical structure that animals use for the exchange of gases with their environment, primarily oxygen and carbon dioxide; examples include lungs, gills, and tracheae.