Question

give an example of lubricant

Answer 1

Other naturally derived lubricantsinclude lanolin (wool grease, a natural water repellent). Whale oil was a historically important lubricant, with some uses up to the latter part of the 20th century as a friction modifier additive for automatic transmission fluid.

Answer 2

oil,water,powder are the ex of lubricants .these were used to decrease the friction.