A new social mobile app you are developing allows users to find friends who are logged in and within a 10-mile radius. This would be categorized as a service.

Geo information service

Explanation:

In simple words, A geographic information scheme (GIS) is a computational structure for capturing and analysing geographical and spatial information. GIS frameworks are microprocessor tools that enable users to generate interactive questions storage as well as edit spatial and non-spatial data, evaluate spatial knowledge performance, and visually share the outcomes of these activities using maps.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

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