ANWSER .08% Hope this helps
<h2>Answer:</h2>
<u>Natural gas is indoor pollutant</u>
<h2>Explanation:</h2>
From the options given above smog and vehicle exhaust are outdoor pollutants. Oxygen is not a pollutant at all. The only option left is natural gas. When we cook food or use heaters we use natural gas so the burning of natural gas pollutes the indoor environment that is why we can say that natural gas is indoor pollutants.
Answer:
Explanation:
Physicians and surgeons have some of the toughest educational criteria of any health profession. A bachelor's degree, a four-year medical school degree, and 3-7 years in internship or residency programs are the minimum requirements.
D) Lungs
Hope this helps :)
