By how much, in ppm, does a city’s ozone level of 0.16 ppm exceed the permissible limit of 0.12 ppm?

Prepare for the Integrated Science and Technology (ISAT) Exam with our quiz. Use our flashcards and multiple choice questions to study effectively. Each question includes hints and detailed explanations. Get ready to ace your exam!

To determine how much the city's ozone level exceeds the permissible limit, you need to subtract the permissible limit from the measured level. In this case, the measured ozone level is 0.16 ppm and the permissible limit is 0.12 ppm.

The calculation would be as follows:

0.16 ppm (measured level) - 0.12 ppm (permissible limit) = 0.04 ppm.

This result shows that the ozone level exceeds the permissible limit by 0.04 ppm. Thus, the answer is indeed correct, indicating the specific amount by which the ozone level surpasses the established safety threshold. Understanding this difference is crucial for assessing air quality and its impact on health and the environment.

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