In the Hindu religious tradition, the tulsi, or holy basil, plant serves both as an important symbol and also as a popular medicinal remedy.
Diamond use to be the hardest known natural substance now it is the mineral lonsdaleite at 58% stronger then diamond is the first the second hardest is wurtzite boron nitridâ¦e at 18% stronger then diamonds they are both extreamly rare natural minerals sources http://www.newscientist.com/article/dn16610-diamond-no-longer-natures- ...
There is no such thing as having âsoft teeth.â In fact, enamel (the outer surface of the tooth) is the hardest substance in the body. There are many factors that cause dental decay so it is often difficult to pinpoint the exact cause.