The entire group of interest to researchers and the group to which they want to generalize their findings is called the

Population                                                                                  

Explanation:                                                        

Population: The term population in any of the research methods or study is also referred to as a well-defined compilation of objects or individuals who are defined as having familiar characteristics. All the group or members of any population is considered to have a similar trait or characteristics.

In other words, a population is defined as a set of similar events or items that posses the interest of a given experiment.

In the question above, the given statement signifies the population in research.

the first one is d and the second a

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.