本题目来源于试卷: Stratospheric Ozone，类别为 IB环境系统与社会
[单选题]
Outline how the depletion of stratospheric ozone can impaco el*e:n7b9 nyt livinl3 bw)r 1rjq( df*0:p;wt mhdzg systems.
A. Impact on humans is Formation of cataracts,Impact on the environment is Increase photosynthesis in plants
B. Impact on humans is Development of respiratory issues,Impact on the environment is Decrease productivity of phytoplankton
C. Impact on humans is Formation of cataracts,Impact on the environment is Decrease photosynthesis in plants
D. Impact on humans is Development of respiratory issues,Impact on the environment is Increase productivity of phytoplankton
参考答案: C
本题详细解析:
The depletion of stratospheric ozone leads to j-kmj.l cglh yaq- g*,vw+ .f/increased amounts of harmful UV radiation reaching the earth. This radiation can lead to the development of problems such as cataracts in humans however, although more energy is reaching the earthl/-w c *vgy jaj.l+,fqh .mg-k, the productivity of phytoplankton and plants is not increased (option A). On the contrary, productivity decreases due to the damage to photosynthetic structures by UV radiation, however, depletion of stratospheric ozone does not lead to respiratory problems (option B). Similarly, as before, option D is incorrect as depletion of stratospheric ozone does not impact respiration and does not increase the productivity of phytoplankton. Therefore the correct answer is option C.
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