Solved by a verified expert:Part I: Geologic History of Earth

1. When you clicked on the “bookmarks,” which events were listed and
in what order (there were six)?
In the Geologic Time Scale
section, images of which organisms are included in the Archaean time period?
Which three periods of time are
described as “Eras”? List the representative organisms included in the photos
that appear when you click on each Era.
How many mass extinctions are listed? What caused each, and how many species are estimated
to have perished?

Choose two of the recent extinctions listed on this link and explain how they occurred.

What were listed as human
activities related to greenhouse gas production? What does this do to the rate
at which carbon is returned to the atmosphere?

Opponents of the theory of global
climate change propose that extinctions are a normal part of our planet’s
history and that the temperature of the planet has also historically
fluctuated. View this graph demonstrating the rate of greenhouse gas accumulation over the last two thousand years. When do the greenhouse gas
emissions drastically increase? Do a Google search using “Industrial
Revolution” as your search term. What connections can you make between the
Industrial Revolution and this graph?

What consequence is shown? What
effect could this consequence have on animal and plant populations in that
region? How much reduction in greenhouse gases is necessary to reduce the
extent of this consequence?

When you click on the “Graph”
menu, what is the relationship between percent (%) of greenhouse gases and
temperature? What is the relationship between temperature and ice? Which mass
extinction from the Natural History Museum website in Part I does this remind
you of?

Part III: Drawing Conclusions

10. Now provide a Conclusion paragraph that explains what conclusions
you can make for yourself based on the evidence provided and what you now know
about the geologic time scale of the history of the Earth. What questions are
still left unanswered for you?

Work Sited

this assignment using Part I, Part II, and Part III with a brief description as
subtitles. Answer each question under the subtitle using complete sentences
that relate back to the question. For example, Question 1 should be organized
this way:
I: Geologic History of Earth
the UCMP website, I found <> listed when I
clicked on the bookmarks in the tutorial.
sure to include a references section at the end of your assignment that lists
the websites used above and any additional resources you used to research your
answers. Follow the format provided in the Background page.