A dwarf is a person of short stature - under 4' 10 as an adult. More than 200 different conditions can cause dwarfism. A single type, called achondroplasia, causes about 70 percent of all dwarfism. Achondroplasia is a genetic condition that affects about 1 in 15,000 to 1 in 40,000 people. It makes your arms and legs short in comparison to your head and trunk.
Definition of NAPHTHALENE. : a crystalline aromatic hydrocarbon C10H8 usually obtained by distillation of coal tar and used especially in organic synthesis.See naphthalene defined for kids. a crystalline aromatic hydrocarbon C10H8 usually obtained by distillation of coal tar and used especially in organic synthesis. See naphthalene defined for kids.
Making the world better, one answer at a time. Naptha is a common name for the industrial solvent Petroleum Ether. Other names include benzine, X-4, or Lingroin. Chemically, naptha is a mixture of straight chained hydrocarbon-ethers, straight chained alkanes, as well as some aromatic hydrocarbons.The actual composition of the naptha will depend on its boiling point (indicative of the distillation temperature).hemically, naptha is a mixture of straight chained hydrocarbon-ethers, straight chained alkanes, as well as some aromatic hydrocarbons. The actual composition of the naptha will depend on its boiling point (indicative of the distillation temperature).