The chemical formula HCO?
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D Question 1 4 pts The chemical formula HCO?” is a chemical shorthand for the chemical species
known in English as the See the discussion of ocean chemistry in the presentation on Oceans. O carbon
dioxide molecule. O carbonate ion. O bicarbonate ion. O tricarbonate ion O carbonic acid molecule.
known in English as the See the discussion of ocean chemistry in the presentation on Oceans. O carbon
dioxide molecule. O carbonate ion. O bicarbonate ion. O tricarbonate ion O carbonic acid molecule.
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:> Question 3 4 pts Which of these was needed to allow buildup of oxygen in the atmosphere? 0
proliferation of plants on land 0 proliferation of microbes in the ocean 0 absorption of ultraviolet light in the
atmosphere 0 high concentrations of iron dissolved in the ocean
proliferation of plants on land 0 proliferation of microbes in the ocean 0 absorption of ultraviolet light in the
atmosphere 0 high concentrations of iron dissolved in the ocean
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Question 4 4 pts Evidence of what the polar climate was like 100 million years ago includes 0 no fossils
whatsoever, indicating completely frozen conditions O fossils of large mammals, such as mammoths and
camels O fossils of large reptiles, such as dinosaurs and crocodiles O fossils of insects, the onl…
whatsoever, indicating completely frozen conditions O fossils of large mammals, such as mammoths and
camels O fossils of large reptiles, such as dinosaurs and crocodiles O fossils of insects, the onl…
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D Question 5 4 pts What is a proxy? O An extinct microbe, responsible for the production of oxygen O a
single decadal layer of coral growth O something that represents climate conditions O an instrument for
measuring oxygen isotope ratios
single decadal layer of coral growth O something that represents climate conditions O an instrument for
measuring oxygen isotope ratios
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D Question 6 4 pts When oxygen first started to build up in the atmosphere, the solar constant was about
W/m2, compared to today’s value of about 1400 W/m2.
W/m2, compared to today’s value of about 1400 W/m2.
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Question 2 4 pts Europe is relatively warm for its latitude. Check it out on a map: most of Europe is as far
north as Canada and Siberia. The famous beaches of the French Riviera are further north than Ann Arbor.
Which of these is a possible explanation for the warmth of Europe, compared to Canada and Si…
north as Canada and Siberia. The famous beaches of the French Riviera are further north than Ann Arbor.
Which of these is a possible explanation for the warmth of Europe, compared to Canada and Si…