GEO 286 Midterm Review on Reservoirs and Fluxes in Climate Systems
17 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which atmospheric layer is closest to Earth and where most clouds form?

  • Mesosphere
  • Stratosphere
  • Thermosphere
  • Troposphere (correct)

What is the primary component of Earth's crust responsible for silicate weathering processes?

  • Carbonates
  • Quartz (correct)
  • Calcite
  • Feldspar

What is the primary mineral used by marine calcifiers to build carbonate shells, sequestering carbon?

  • Gypsum
  • Quartz
  • Calcite (correct)
  • Feldspar

What process in the biosphere uses CO2, H2O, and sunlight to create sugars and O2?

<p>Photosynthesis (A)</p> Signup and view all the answers

What has contributed to the formation of the Arctic sea ice in the Northern Hemisphere?

<p>Closing of the Panama isthmus (D)</p> Signup and view all the answers

In which zone do phytoplankton photosynthesize due to sunlight reaching this area?

<p>Epipelagic zone (D)</p> Signup and view all the answers

What was the reason behind the mid-century ‘pause’ in global warming?

<p>Aerosol pollution (C)</p> Signup and view all the answers

Which observation is true regarding the cryosphere?

<p>Decrease in mass of Greenland ice sheet (A)</p> Signup and view all the answers

Where does most of the observed sea level rise come from?

<p>Thermal expansion (C)</p> Signup and view all the answers

What is NOT consistent with CO2 levels over the past 800,000 years?

<p>Increased atmospheric CO2 levels (B)</p> Signup and view all the answers

Which is a paleoclimate proxy for determining past climate conditions up to around 2000 years ago?

<p>Tree rings (C)</p> Signup and view all the answers

What is used as a proxy for determining paleoclimate changes associated with the Pleistocene era?

<p>Ice cores (C)</p> Signup and view all the answers

Which isotopic notation is used to quantify the fractionation of hydrogen isotopes?

<p>𝛿D (B)</p> Signup and view all the answers

In which type of climates can heavier water evaporate easily?

<p>Warmer climates (A)</p> Signup and view all the answers

Which isotopic signature indicates more heavy water in the atmosphere relative to oceans?

<p>High 𝛿D (Deuterium) (B)</p> Signup and view all the answers

What is the significance of low 𝛿13 𝐶 (Carbon) in indicating the source of an increase in atmospheric CO2?

<p>It suggests contribution from organic matter. (A)</p> Signup and view all the answers

During which period did the 'Little Ice Age' occur, with regional cooling particularly pronounced in Europe and North America?

<p>1400s-1800s (B)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser