1. the division is in charge of mapping land and water, and global positioning technologies for the united states
us geological survey
us fish and wildlife service
bureau of reclamation
mineral management service
2. the division is in charge of us oil reserves all morning activities oil drilling in natural gas extraction procedures
us geological survey
us fish and wildlife service
bureau of reclamation
mineral management service

1- The division is in charge of mapping land and water, and global positioning technologies for the United States --- Bureau of Reclamation

2- The division is in charge of US oil reserves all morning activities oil drilling in natural gas extraction procedures  --- Mineral Management Service

Explanation:

1- The United States Bureau of Reclamation is a federal agency that focuses on water management, primarily for irrigation, water supply and hydropower plants in the western United States. The agency supplies 31 million people in the country with water, making it the largest water wholesaler in the country. One in five farmers in the West are supplied with irrigation water by the Bureau of Reclamation. The agency is also the largest producer of electricity from hydropower in the western US.

2- The Minerals Management Service (MMS) was an agency of the Department of the Interior responsible for regulating the exploration and exploitation of mineral resources (and petroleum, although this is not a mineral resource) in the United States. It functioned as a regulatory agency.

Since August 2005 the MMS had also regulated the generation of wind energy in the USA.  MMS was temporarily renamed Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) during its reorganization until its dissolution on October 1, 2011.

the denominator has a very specific role.