9 multiple choice 2.5 points what unit of mea...
9 multiple choice 2.5 points what unit of measurement is used to measure sound? decibels (db) ohms (ω) joule (j) newtons (n) 10 multiple choice 2.5 points which type of air pollution has greater health effects? ground level ozone particulates acid rain indoor air pollution
Answer
# Brief Explanations:
- For question 9: Decibels are the standard unit for measuring sound intensity. Ohms measure electrical resistance, joules measure energy, and newtons measure force.
- For question 10: Particulates can penetrate deep into the lungs and even enter the bloodstream, causing various health - related issues such as respiratory and cardiovascular problems, and are known to have significant health effects compared to the other options. Ground - level ozone can also be harmful, acid rain mainly affects the environment like soil and water bodies, and while indoor air pollution is a concern, particulates are a major and widespread threat.
# Answer:
9. A. Decibels (dB)
10. B. Particulates