Question

the ancient cahokia were excellent engineers and hard workers. they were a thriving civilization. i know this because...i

Explanation:

The problem is about the ancient Cahokia civilization, which relates to the study of past human societies and their achievements, falling under History (a subfield of Social Science). To explain "I know this because...", we can reference Cahokia's architectural feats (like Monk's Mound), urban planning, and evidence of large - scale construction that show their engineering and hard - working nature as a thriving civilization.

Answer:

I know this because the ancient Cahokia had remarkable architectural achievements (such as the construction of Monk's Mound, one of the largest earthen mounds in North America), advanced urban planning with a well - organized city layout, and evidence of large - scale public works projects. These all demonstrate their excellence in engineering and the hard - working nature required to build and sustain such a thriving civilization.