The traditional method for limonene extraction is steam distillation (essentially, codistilling the limonene oil with water). Following the steam distillation, the limonene must be separated from water. A separatory funnel is used to extract limonene from the water layer into an organic layer (such as ether). Compare the greenness of the liquid CO2 extraction method to the traditional steam distillation method, highlighting at least two differences in the methods. Use the 12 principles of green chemistry (link available on WebCampus) to aid in your discussion. A few sentences should suffice.