In this unit, the ten classes of supplies were discussed. Each is important for its own reasons. Choose two classes of supplies that you feel are most important and give reasons for each choice to support your answer?

a is the answer because it just is

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.

the answer is d.index