Answer:
Cooking
Explanation:
Cooking and baking would be the easiest answer to come up with. It's the most practical thing that you would be measuring liquids and solids for. For example, you should measure how much water or flour you use when making food. Try and think of a time you may have used a measuring cup of some sort.
Answer:
A signal has a wavelength of 1 μm in air
Explanation:
looked it up
Answer:
can you expand on your question?
I am fairly sure the command for boot options is F11, and if not, then power down the system manually and turn it back on