Question

what is the cause of friction​

Answer 1

Answer:

The cause of friction are molecular adhesion,surface roughness and deformation

Explanation:

Adhesion is the molecular force resulting when two materials are brought into close contact with each other

Answer 2

Estates-General, also called States General, French États-Généraux, in France of the pre-Revolution monarchy, the representative assembly of the three “estates,” or orders of the realm: the clergy (First Estate) and nobility (Second Estate)—which were privileged minorities—and the Third Estate, which represented the