Other things that were used before toilet paper include: Hay, corncobs, sticks, stones, sand, moss, hemp, wool, husks, fruit peels, ferns, sponges, seashells, and broken pottery. 15. 70-75% of the world still doesnât use toilet paper because it is too expensive or there is not sufficient plumbing.
Propensity is defined as a natural tendency. An example of propensity is an inborn love for writing. pl. -Â·ties. 1  a natural inclination or tendency; bent.  Obs. favorable inclination; bias (for)
Propensity and proclivity both just mean tendency: Propensity: a natural inclination or tendency: a propensity to drink too much. Proclivity: natural or habitual inclination or tendency; propensity; predisposition: a proclivity to meticulousness. So while propensity and proclivity are close synonyms, and interchangeable, predilection means something different, and should not be used as a synonym. There is one major difference between propensity and proclivity, and that is popularity: Proclivity to me sounds more scholarly than propensity, maybe just because not many people use it.