The average distance is about 150 million kilometers (149.6) or 93 million miles (92.9). This is defined as 1 astronomical unit, or AU, and is equal to about 8.2 light-minutes, as light from the Sun takes about 8 minutes to reach Earth.
The definition of a scourge is someone or something that causes a lot of trouble, problems or suffering. An example of a scourge is famine or the outbreak of a disease. YourDictionary definition and usage example.
Basic Definition. Screeding means to drag a long, flat board across a pliable material to smooth it down. This also means that the board you use for this purpose is called a screed. For example, you might have a wavy sub-floor that needs to be filled in with leveling compound. If the compound is not self-leveling, then you must drag the screed across the top to bring the compound to level.