Lagos Sydney, Singapore, Hong Kong and Calabar are cities which have attained co...

Lagos, Sydney, Singapore, Hong Kong, and Calabar are cities that have become very important for a specific reason. The question is asking why these cities have gained significance.

The options provided are:

A) Because they are crossroads to international airlines

B) Because they have seaports

C) Because they are densely populated (Correct)

D) Because they are administrative capitals

Out of these options, the correct answer is option C - because they are densely populated.

Being densely populated means that these cities have a large number of people living in them. This population density has contributed to their importance and development. When a city has a high population, it usually means that there are many economic activities, such as businesses, industries, and services. This leads to more job opportunities, higher incomes, and better infrastructure like roads, schools, hospitals, and transportation systems.

In the case of Lagos, Sydney, Singapore, Hong Kong, and Calabar, their dense populations have attracted investments and led to the growth of industries, trade, and commerce. These cities have become major economic centers, attracting both local and international businesses. The large population also means a bigger market for goods and services, making these cities hubs for trade and commerce.

It is important to note that while the other options, such as having seaports or being administrative capitals, can also contribute to the importance of a city, the main reason for the significance of these particular cities is their high population density.