(单选题)

According to the 3rd paragraph, the scientists consider plastics "should now be considered as a marker for a new epoch" to indicate ( ).

A.the difficulties to deal with the plastic waste.

B.the important role of plastics in people's daily lives.

C.the impact of plastics on the environment on this planet.

D.the large amount of plastics on earth.

参考答案：C

参考解析：

根据题干定位至第二个小标题下，Plastic's effect on the environment is so severe that the scientists consider plastics "should now be considered as a marker for a new epoch"塑料对环境的影响是如此严重，以至于科学家们认为，在地球的地质构造中，塑料“现在应该被认为是一个新时代的标志”，可知是塑料袋对环境的影响。故本题正确答案选C。

知识点：细节题英语阅读理解通用英语