In the research model, the step in which the researcher specifies what he or she wants to learn about a specific topic of study is called

It is called "defining the problem".

A research problem is an announcement around a region of concern, a condition to be enhanced, a trouble to be dispensed with, or a disturbing inquiry that exists in scholarly writing, in principle, or practically speaking that focuses to the requirement for important understanding and deliberate investigation.

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.