Cindy and her husband are trying to have a baby. based on the calendar method of birth control, when is the best time (approximately) for them to have intercourse in order to conceive?

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.

well its is frequent rain

have a good day