The chapter compared and contrasted the interdisciplinary research process to the disciplinary approach (in a general sense) and argued that both have utility, depending on the problem.
Decide which approach is probably the most appropriate to answer each of the two questions below, and explain why.

(a) What is the cause of obesity among teens?
(b) The "cost," feasibility, or impact of building a high-speed rail system between Miami and Orlando.

The cause of obesity among teens requires a disciplinary research process. While The "cost," feasibility, or impact of building a high-speed rail system between Miami and Orlando requires an interdisciplinary research process

Explanation:

The cause of obesity among teens

The cause of obesity among teens requires a disciplinary research process because it is strictly a health issue, and would require findings that are health based to ascertain the causes. That is to say, obesity is the central issues that requires the research , and cannot be inter-mixed with other discipline that is out the health profession if the causes of the ailment is to be proved and established.

The "cost," feasibility, or impact of building a high-speed rail system between Miami and Orlando

This approach on the contrary requires an interdisciplinary research process because it is a study that requires valuable research and findings from two or more profession or discipline.

For example, to determine the type, quality and quantities of materials that will be most suitable for the construction or building of such a high-speed rail system across two states, it is the duty of someone who is an engineering to perform. To determine the cost implications of the project, it is the work of an accountant. While to ascertain the impact of embarking on such project requires someone in the field of economics.