6. Why are airports extremely busy ? 7. Mention some of the problems caused by large cities and how can we solve them.

8. What are the reasons/factors for drastic increase in population?.
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6 depends on which airport and its location. For example Miami International is always flooded with arrivals and departures for both commercial and cargo

7 Some problems can be heavy traffic hold ups sanitation issues and homelessness

8 birth rates have increased

Explanation:

explanation:

i believe the primary and secondary sectors

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.