Unit 2. The EnvironmentReading1. Our Changing Planet변하고 있는 우리의 지구The Upsala glacier in Argentina used to be one of the biggest glaciers in South Ameri..
sequentially by fossils on rock layers. ... Cambrian an is the first time that fossils of complex multicellular organisms is start to be found In ... According to the fossil record, some species can be exemplified such as chiroptera and domestic cat.
But burning fossil fuel is mostly after industrial revolution. ... changed our planet’s climate, without intention, by changing atmospheric component ratio by burning fossil
The fossil-bearing sedimentary rock is overlain by an acidic tuff, and the sedimentary rock and acidic ... U-Pb age of the acidic tuff indicates the eruption time of acidic tuff and thus the minimum age of the fossil-bearing