Select the correct answer. Which factor is difficult to assess in a cost-benefit analysis?
A.
product being used by everyone
OB.
the aesthetic value of nature
OC.
identifying internal costs
D. categorizing internal and external costs

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u.s. fish and wildlife service