It is genetic - in my family there is no history of it as it is a recessive gene but my mum and dad were both carriers. In Scotland up to 13% of the population has red hair, but around 40% of the population is thought to carry the recessive gene responsible for the world's rarest natural hair colour.
On the other hand, synthetic base oil molecules are chemically controlled, which provides increased ï¬ lm strength and lubricity over petroleum oils. The performance qualities of base oils have a marked impact on the performance qualities of the ï¬ nished product.
Answer by Crazyman1569. Confidence votes 65. Crude Oil is the mixture of difference substances, substances are seprated from crude oil through the process of Fractional Distillation. the substances extracted from crude oil are as follow :Fuel Gas (LPG). Petrol. Naptha (used for plastics).onfidence votes 65. Crude Oil is the mixture of difference substances, substances are seprated from crude oil through the process of Fractional Distillation. the substances extracted from crude oil are as follow :