The nervous system that carries impulses or messages to the central nervous system is the:

The sensory neurons (afferent neurons). These neurons convert stimuli into electrical pulses that are sent to the central nervous system for processing.  The stimuli may come from outside the body, such as smell, sound, and touch, or from inside the body such as blood pressure. Afferent neurons in the Periphery nervous system connect to 31 spinal nerves that send information to the brain through cranial nerves.

b.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.