This type of supernova is caused by a white dwarf. A white dwarf is the remnant of a sun-like star at the end of its life, a body of about 1 solar mass, mainly composed of carbon and oxygen. The matter is compressed into an earth-sized object with a diameter of between 11000 and 28000 km.
The main active ingredient in Robitussin cough medicine is dextromethorphan, or DXM. DXM is a non-narcotic cough suppressant indicated for cough caused by irritation of the bronchial passages and the common cold. BananaStock/BananaStock/Getty Images.
1 Active ingredients are imidacloprid, Metalaxyl, and Tebuconazole. 2  Registered for use on barley, oats, switchgrass, and wheat. 3  Leverage 2.7: Made by Bayer. 4  Active ingredients are imidacloprid and Cyfluthrin. 5  It is registered for use on many crops, including fruits, vegetables, nuts, beans, and soybeans.