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.
scab. 1  a crust that forms over a sore or wound during healing. 2  a mangy skin disease, as scabies, of animals, esp. sheep. 3  any of various plant diseases characterized by roughened, scablike spots on leaves, stems, or fruits. : 4  usually a term of contempt or derision Slang a low, contemptible fellow; scoundrel.