Explanation:
urban areas are mostly characterised by high population advanced technology and basic amenities. The population helps to increase productivity which leads to economic development, employment opportunities that promotes increase in standard of living which in turn helps economic development.
The Arkansas River is considered a tributary of the Mississippi River because I believe it is because the Arkansas River flows into the Mississippi which then flows into the sea.
<u>Answer:</u>
Caucasus
<u>Explanation:</u>
Caucasus, Russian Kavkaz, mountain system and region lying between the Black Sea (west) and the Caspian Sea (east) and occupied by Russia, Georgia, Azerbaijan, and Armenia.
hope this helped!