Jones and Cassidy went on to play mother and son on The Partridge Family, which debuted in the fall of 1970. Danny Bonaduce and Susan Dey were also key members of the cast.
DEFINITION of 'Sweet Crude'. A type of oil that meets certain content requirements, including low levels of hydrogen sulfide and carbon dioxide. Sweet crude gets its name if it contains less than 0.5% sulfur. Refiners prefer sweet crudes because of the low sulfur content and relatively elevated yields of high-value products, including gasoline, diesel fuel, heating oil and jet fuel.
Sweet vs Sour Crude. Although there are many other classifications of oil like with respect to its molecular weight (light versus heavy crude oil), two classifications are usually confused with each other. These are the sweet and the sour crude oils. Foremost, it is best to define what crude oil really is. This oil is practically equal to what is known as unrefined oil. But with regard to discerning the sour and sweet crude types, the primary difference between the two is in their sulfur content. It is important to note though that the fewer the sulfur in the oil, the friendlier it becomes to the environment.