Question:
Goal: how to clean your microwave

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
fill a microwave-safe bowl with a few tablespoons of white vinegar and a cup of water, and nuke on high for a few minutes.

Question:
Goal: To make greensand for making a casting mold.

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Mix cat litter and sand.

Question:
Goal: To measure a precise amount of baking soda, you can

Which of the following methods is more reasonable for accomplishing this goal?
Answer:
Use a gram scale to know exactly how much you have