Answer:
I would classify them as living
Explanation:
I'm if this is wrong but you gave very little information
Answer:
They all seem right but...
Explanation:
I pick option C. The pictures are taken with film that makes the models look flawless.
<em>Please don't hesitate to correct me if I'm wrong...</em>
<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.
you can freeze dry it. You can put the food in an air tight bag.