Answer:
One way creativity is helpful to scientists is when they need to come up with a experiment or cure for something their imaginastion is very helpful. The reason for that is with creativity they could get answers much quicker!
Explanation:
Movement of molecules from an area of higher concentration to one of lower concentration is called Diffusion
Methane CH4
ethane C2H6
propane C3H8
Butane C4H10
pentane C5H12
Here, as they both are physical things without any magnetic property & density difference, screening would be best.
In short, Your Answer would be Option C
Hope this helps!
