Coal in Australia. Right now, coal is Australiaâs primary fuel source for generating electricity at around 73 percent. Black coal is found across Australia. Brown coal, sometimes called lignite, is a relatively soft material, which has a heating value of about one-quarter of black coal.
noun. The definition of abrasive is something that is harsh or rough, often to an unpleasant degree. An example of abrasive is the attitude of your boss who is always short tempered and yelling at you. Sand paper or SOS pads are examples of abrasives.
The skin is composed of an outer layer (the epidermis) which provides protection, and a deep inner layer (the dermis), which provides the firmness and flexibility of the skin. Abrasions typically refer to an injury that removes these layers of skin. Cyclists often refer to abrasions from crashes as road rash..