I would suggest a recycling drive and area cleanups. Just make sure you have responsible adults while doing the cleanups. I hear that alligators and crocs are an issue in urban areas. Also a tutoring or mentoring program is also great for kids.
Answer:
1. They developed a complex road system to connect the many regions of their empire.
2. Inca
Explanation:
The Inca empire was a large empire and for the Inca to maintain control, they needed to be able to move across the steep terrains that their empire encompassed. For this reason, they built an complex road system that included a lot of rope bridges.
These rope bridges numbered over 200 and were capable of supporting heavy weights which allowed the Inca to transport goods and armies to various parts of the empire and led to the establishment of one of the greatest ancient empires of all time.
Immediate reason for the war was Athenian control of the Delian League, the vast naval alliance that allowed it to dominate the Mediterranean Sea.
Secondary Sources are useful because they offer a different point of view to past events. While most secondary sources are based on a primary source, they are still useful because of the analysis that they can offer compared to past stories.