C because it might not protect your fall
8-10 hours. It helps you take in information and remember things if your brain is well rested and you don't have to force yourself to wake up.
Yes as long as the wax is falling in to something and it's out of reach, there is no toxins in wax.
One exercise myth would be- if you do a lot of crunches you will have "six pack" abs. This is incorrect because if you have fat on your stomach, the crunches will create muscle not burn fat.
Another exercise myth- muscles turn to fat when you stop exercising. This myth is not plausible because muscles are almost impossible to go away. Your muscles have muscle memory which makes it extra hard to "forget"!
Last exercise myth- strength training makes women muscular and unfeminine. This is not possible because strength training tests your endurance not how much you can lift. However, lifting weights would give you muscles! <3