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 definition of obtrusive is noticeable and undesirable, or something that sticks out or is in the way. An example of obtrusive is an ugly mole on a nose. An example of obtrusive is a pushy person trying to cut to the front of a line. An example of something obtrusive is a fallen tree blocking a road. obtrusive. obtrusive.