A bird conservation society has a database of every bird spotted by members in the past year. To make this data part of a GIS would require tying each sighting to

A. a location on a digital map.

Explanation:

Complete Question:

A bird conservation society has a database of every bird spotted by members  in the past year. To make this data part of a GIS would require tying each  sighting to

A. a location on a digital map.

B. membership numbers.

C. species scientific names.

D. the name of the person who made the sighting.

Digital maps are collection of data which are compiled and then formatted into a virtual image to provide precise and   error free representations of a particular points of interest. Digital mapping is necessary in GIS, a system (that has a database) which is designed to capture,manage, analyze, store and displaying data related to all types of geographical data. Therefore,GIS consists of more interactive maps which helps to identify every aspects of the birds in the database of the bird conservation society and improved decision making to matches the place that was marked by the map makers by other member of the bird conservation society.

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basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.