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Maddie Healy 7.4 NC Geological History As you read the article about North Carolina’s geological past, you will answer the following questions. Turn in this document for a grade.1.When did the landmass under NC form?2.How did the Appalachian Mountains form?3.When did the first Homo sapiens appear in NC?4.What are the 2 words that scientists use to describe all the changes in geology, environmental conditions, biology, and climatic?5.In your own words, describe radioactive dating.6.In your own words, tell where the oldest rocks come from?The oldest rocks are found from meteorites and brought back from the moon. 7.In your own words, describe what was special about the rocks found in Greenland?Rocks found in Greenland have been found to be 3,800 million years old. The rocks are metamorphic — they were changed by heat and pressure and so oceans had to have been formed. 8.In your own words, describe what the climate was like in the distant past?Glaciers left mineral deposits that could only be laid down in certain conditions. This is how we know what locations were warm or cool. 9.In your own words, describe how we know when certain types of plants andanimals appeared?
We use dating of fossils to determine when certain types of plants and animals appeared. 10. In your own words describe how different species are related.Scientists classify species based on their ancestry and evolution. Morphology and DNA testing can be used.