A greenhouse gas that is exclusively anthropogenic is A: H2O B: CO2 C: CCl2F2 D: CH4 E: O3

The most abundant non anthropogenic greenhouse gas. A: H2O B: CO2 C: CH4 D: O3 E: CCl2F2

Which of these anthropogenic greenhouse gases is the biggest contributor to net radiative warming? A: Methane B: Nitrous oxide C: Water vapor D: Carbon dioxide

Recentscholarshiphasquestionedthe(i)_____oftropicalforestsaroundtheworld.Archaeologistshaveshown,forexample,thatthelargestcontiguoustractofwhatwasthoughttobevirginrainforestinthesouthernAmazonhadbeentransformedintoaculturalparklandbeforeEuropeancontact,andmanyoftheforestislandsinWestAfrica’ssavannaforesttransitionzoneare(ii)_____aswell. A: diversity B: naturalness C: sustainabilityii. D: isolated E: endangered F: anthropogenic

Select all of the anthropogenic greenhouse gases covered by the Kyoto Protocol: A: HFCs, PFCs, SF6 B: Water vapor (H2O) C: Methane (CH4) D: Nitrous Oxide (N2O) E: Carbon Dioxide (CO2)

Which of the following () may not be interested in science and technology A: The substance facing a resource shortage B: The substance with an increasing uses C: The substance whose anthropogenic flow is closely related to other substances D: None of the above

The material flow can be divided into the following ( ) two categories according to whether the material flow is mainly caused by human activity A: Material biogeochemical flow and its anthropogenic flow B: Material flowing with the atmosphere and with the water body C: Material industrial and agricultural flows D: Material industry flow and consumption flow

Which of the following describes the two typical methods for material anthropogenic flow analysis A: The dynamic method tracing material flow process and the STAF method focusing on the specific area B: The mass conservation method and the statistical analysis method C: Material flow analysis method and life cycle analysis method D: Bottom-up method and top-down method