Subsong Refers To

question 42

Multiple Choice

Subsong refers to:

• A)songs that are not completely learned.
• B)noises that would be like babbling in humans.
• C)songs that are below the perceived human auditory threshold.
• D)syrinx movements not accompanied by sound.

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Definitions:

Crude Oil

A natural, unrefined petroleum product composed of hydrocarbon deposits and other organic materials.

Distillation

A process of separating components from a liquid mixture by selective boiling and condensation, commonly used in the purification of water, alcohol, and chemicals.

Hydrocarbon

is an organic compound consisting entirely of hydrogen and carbon atoms, commonly found in fossil fuels and as the basis of various organic substances.

Petroleum

A naturally occurring liquid found beneath the Earth's surface that can be refined into fuel and various chemical products.