What are the two sources of unclassified imagery?

The correct answer is based on the understanding that unclassified imagery can be accessed from various sectors, particularly categorized as civil and commercial. Civil sources typically include imagery produced by governmental or non-governmental organizations that are not restricted and are available for public use. This can encompass satellite imagery provided by entities that operate for purposes beyond military engagements, such as environmental monitoring or urban planning.

On the other hand, commercial sources refer to imagery captured and provided by private enterprises that offer satellite imagery services or aerial imagery for various applications, from agriculture to real estate. The commercial domain has experienced significant growth, allowing for greater accessibility of high-resolution imagery for various uses.

Overall, the combination of civil and commercial sources makes it possible to gather unclassified imagery essential for various analytical and planning purposes across different fields, reinforcing their significance in the realm of unclassified data acquisition.