If I Increase the Volume on My Stereo by 10

question 5

Multiple Choice

 If I increase the volume on my stereo by 10 dB, from 60 dB to 70 dB, my family will probably perceive the loudness of the music as

• A) 10 times louder than before.
• B) 100 times louder than before.
• C) 2 times louder than before.
• D) about the same as before.

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Definitions:

Food Web

A complex interconnection of all the food chains in an ecosystem.

Food Chain

A sequence that displays the feeding relationships between organisms, showing how energy and nutrients flow from one organism to another.

Energy Flow

The transfer of energy through a community of organisms by the feeding of one organism on another.

Biomass Reduction

A decrease in the total mass of organisms in a particular area, ecosystem, or trophic level over time, often due to environmental pressures or exploitation.