Which of the following forecasts for the longer-term nutrient budget in the two 15-hectare areas compared in Table 2 on page 48 is most reasonable?
A. Nutrient losses in the deforested area will slowly decline while nutrient losses in the undisturbed area will increase.
Both the undisturbed and deforested areas will experience increasing losses of nutrients.
C. Nutrient losses in the deforested area will slowly increase while nutrient losses in the undisturbed area will slowly decrease.
D. Nutrient losses in the undisturbed area will remain stable over the longer term while nutrient losses in the deforested area will slowly decline.
查看答案
The data provide LEAST support for which of the following hypotheses about the impact of
A. Clear-cutting has the effect of increasing the amount of coarse particulate matter that exits the ecosystem.
B. Clear-cutting has the effect of increasing the loss of super-fine particulate matter that exits the ecosystem.
Clear-cutting has little effect on the amount of fine particulate matter that exits the ecosystem.
D. Clear-cutting has the effect of increasing the loss of organic matter but not inorganic matter.
通过资源税调节自然资源形成的级差收入,是财政发挥的()职能的体现。
A. 收入分配
B. 资源配置
C. 经济稳定
D. 经济发展
The results of experiment 2 show that,from 1993 to 2000, pH levels:
A. remained stable in the non-glacial lakes but increased in the glacial lakes.
B. decreased in the glacial lakes but decreased in the non-glacial lakes.
C. increased in the non-glacial lakes but decreased in the glacial lakes.
D. increased in the non-glacial lakes while remaining relatively stable in the glacial lakes.
按具体的交易工具类型划分,金融市场不包括()。
A. 货币市场
B. 黄金市场
C. 保险市场
D. 债券市场