Rivers, mountain ranges, historical points (railway, a wall, etc.)
Most country borders are divided by geographical points, and sometime just for political and historical reasons (what belonged, and waht should belong to whom).
Hope it helped,
Happy homework/ study/ exam!
Answer: Friction
Explanation: Friction is a metaphoric concept for understanding globalization in particular places and times.
According to Tsing, culture change is continually co-produced through the interconnection characterized as "friction". It is an important element in sustaining global connections because it makes global connections relevant to local.
Vivaldi suffered from what was described as<span> strettezza di petto</span><span>(tightness of the chest), which was probably bronchial asthma. This illness plagued him throughout his life and exerted a strong influence on his personal and professional behavior. He also helped orpahanges, and taught oprhans music. He is known for his red hair, and love for music, and his compassion. I hope you found this answer helpful, and if so, please mark as brainliest, thank you ((:</span>
<span>The reliance on only observable entities in order to come up with laws is realism. In arts for example, realism aims to present its subject and the art itself without being superficial but only the truth and nothing but the truth. Therefore it avoids any fantasy-related elements.
</span>