Benign paroxysmal positional vertigo (BPPV) causes a whirling, spinning sensation even though you are not moving. If the vertigo is bad, it may also cause nausea or vomiting. The vertigo attacks happen when you move your head in a certain way, such as tilting it back or up or down, or by rolling over in bed. It usually lasts less than a minute. Moving your head to the same position again may trigger another episode of vertigo.
There are more carbon compounds than there are compounds of all other elements combined. The study of carbon compounds, both natural and synthetic, is called organic chemistry. Plastics, foods, textiles, and many other common substances contain carbon.
Carbon compounds are important in many facets of the petrotchemicals industry as the feedstock is carbon-based. Carbon is also the basis of fuels such as coal and oil since both coal and oil are rich in carbon.Carbon as graphite is a good lubricant.Carbon is a key component of steel. The analysis of iron (ferrous) metals in industry is important and ideally achieved in the field with robust equipment.arbon is also the basis of fuels such as coal and oil since both coal and oil are rich in carbon. Carbon as graphite is a good lubricant. Carbon is a key component of steel.