The standard measure used to compare sound intensities is the .

Decibels

Explanation:

Decibel is the unit which used to measure intensity of sound. Sound intensity is the power carried by the sound waves per unit area perpendicular to it.

measured in W/m²

In decibels:

With each unit rise of decibel, the sound intensity varies by a factor of 10.

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

c because the news are a source of information of things that happen on the daily and shows evidence about that particular topic