Question:
Goal: oil

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
can make the floor slippery

Question:
Goal: what to do with leftover grease and fat

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
melt down and make a candle

Question:
Goal: To remove bubbles from silicone that has been poured into a mold.

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Vibrate the mold to get the bubbles to rise and pop.