Define service. Name the service which is related to the following cases:

Define service. Name the service which is related to the following cases:
(i) The services which helps in removing hindrance of knowledge.
(ii) The services which helps in removing hindrance of place.
(iii) The services which helps in removing hindrance of time.
(iv) The services which helps in removing hindrance of risk.

(i) Advertisement branch.
(ii) Transport segment.
(iii) Warehousing segment.
(iv) Insurance branch.