If you tend to mouth breathe at night, it is important to make a check for the dryness every morning. While night sleeping, it is very important to breathe through your nose. In case you neglect your mouth breathing for 7-8 hours every night, it will be difficult for you to change your breathing on a permanent basis.
Diamond is currently thought to be the hardest natural material on Earth, having a hardness of ten out of ten on the Mohs scale of mineral hardness. Diamond is made up of carbon atoms which share strong covalent bonds (where electrons are shared between atoms) and are equally spaced in a lattice arrangement.
What is the hardest natural material found in the entire universe?   The hardest material known to man is currently called lonsdaleite (a carbon form), which is approx. 58 % harder than a diamond and then there is wurtzite boron nitride wâ¦hich is about 18% harder than diamond. Both occur in nature just like diamonds.