Part 2. Reading Graphs 50 Use the graph to answer the questions. Background Irid

Question

Part 2. Reading Graphs 50 Use the graph to answer the questions. Background Iridium concentrations 4. What is shown on the x-axis? 40 What are the units used? Typical sediment mixing profile Sediment (cm) 5. What is shown on the y-axis? (Please write the characteristic of the sediment that is represented) What are the units used? 10 8 6. At what depth are iridium concentrations the greatest? 10 Iridium (parts per billion) 7. Provide an appropriate title for this graph in the space provided. 8. Why is the iridium layer important for our understanding of deep geologic time?

Explanation / Answer

4.Iridium is shown on x-axis

parts per million are units

5.Sediment is shown on y-axsis (typical sediment mixing profile)

cm is the unit

6.At 10 cm depth the iridium concentration is greatest

7.depth varying characteristic graph between Sediment and iridium

8.As this term refers to unusual abundance of chemical element iridium in layer of rock strata through this behaviourial changes of rock strata is studied... So it is important for our understanding of deep geologic time

  

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