1). According to the Faint Young Paradox, which of the following statements are
ID: 160281 • Letter: 1
Question
1). According to the Faint Young Paradox, which of the following statements are true? Select all that apply.
There was more water vapor in the atmosphere in the past than present, which is why it was not colder in the past.
2). What was necessary for Snowball Earth to form? Select all that apply.
3).
What was necessary for the Earth to come out of the Snowball Earth period? Select all that apply.
Slow silicate weathering
4). If the oxygen (O18) content of the seawater is unusually high this would imply that:
5). The Younger Dryas period was likely due to:
The Sun’s brightness has increased over time.Explanation / Answer
1.
Answer: The concentration of greenhouse gases in the atmosphere was higher in the past counteracting the Sun’s low luminosity.
2.
Answer: The Ocean being a net sink of CO2.
3.
Answer: Snow reacting with CO2 removing the CO2 from the atmosphere.
4.
Answer: The planet was experiencing glacial conditions, or cold global average temperatures.
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