The answer is smoke in air because air cannot be separated by filtration. Distillation deals with the conversion from gas to liquid. I believe that will work with smoke and air. Hope I helped. Goodluck
Answer:
"A sphere with a radius of 7 meters" would have a surface area of 615.75m²
Explanation:
By using the formula of A=4πr2 you can solve for surface area, hope this isn't too confusing! round my answer as needed and <em>best of luck with your assignment!</em>
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