Each cerebral hemisphere is divided into four lobes; the frontal, parietal, temporal, and the occipital. This lobe deals with with higher level cognitive functions like reasoning and judgment. Sometimes called executive function, it is associated with the pre-frontal cortex.Most importantly the frontal lobe contains several cortical areas involved in the control of voluntary muscle movement, including those necessary for the production of speech and swallowing.ometimes called executive function, it is associated with the pre-frontal cortex. Most importantly the frontal lobe contains several cortical areas involved in the control of voluntary muscle movement, including those necessary for the production of speech and swallowing.
This applies for government and non-government activities But the SIC codes are obsolete. You should be using the NAICS Codes instead. The NAICS Code for Water Supply and Irrigation Systems is 221310
The North American Industry Classification System (NAICS) (developed by the United States, Canada and Mexico) is widely used by investors to classify companies. In the NAICS hierarchy, companies that use similar production processes are categorized in the same industry.EFINITION of 'Industry'. A classification that refers to a group of companies that are related in terms of their primary business activities.