<span>pressure , heat and erosion
</span>
<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.
To eat healthy and to stop eating whatever she wants even though she’s not overweight. She doesn’t need to go on an diet but she needs to eat good foods to maintain her health and proper weight.
