D) selecting random sample allows for a more representative sample in a survey.
Concepts of World City includes geographical dispersal of economic activities, increase the number of share for global firms, improvement of firms such as accounting, legal, public relations, programming, telecommunications, enhancement of production, maintain economic stability and improvement of the global network of affiliates.
I think the answer to your question, is Public Support. Hope it helps......
Answer:
B. seasonal temperature changes
Explanation:
A shallow lake can be dried up in the summer by extreme heat and can freeze over in the winter due to cold. Also I just took this test and this was the answer