Use the Decibel Scale to Answer the Question

question 71

Multiple Choice

Use the decibel scale to answer the question.
-How does the intensity of sound from a concert speaker at a distance of 20 meters compare to the intensity at a distance of 140 meters?

• A)Factor of 7 weaker at 140 m.
• B)Factor of 49 weaker at 140 m.
• C)Factor of 196 weaker at 140 m.
• D)Factor of 70 weaker at 140 m.

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Definitions:

Potential Pest Species

Organisms that are likely to cause harm or damage to crops, livestock, or ecosystems if their populations are not managed.

Hormones

Chemical messengers produced by glands in the body that regulate the activity of cells or organs.

Insect's Life Cycle

The developmental stages an insect goes through from egg to adult, usually including egg, larva, pupa, and adult stages.

Insect Birth Control

Methods or substances used to control the reproduction and population growth of insects, often to reduce the spread of diseases or protect crops.