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[Chapter 17. Winds of the World: Global and Local Wind Systems] 4.    Atmospheric scientists refer to the layer of air adjacent to the Earth’s surface where the friction significantly affects air movement as a _____________.

[Chapter  22. The Sun, The Stars, and Deep Space] The Sun’s layer that produces the energy is the ______

[Chapter 18. Danger in the Air: Stormy Weather] Which of the following is the best place to be during a thunderstorm?

[Chapter 8 and 9: Geological Time and Geological History] The Hadean was a time in the Earth’s history when _________.

[Chapter  22. The Sun, The Stars, and Deep Space] The light areas in this diagram of the Universe are galaxies forming filaments and

[Chapter  21. Our Neighborhood in Space: The Solar System] Debate about how to classify the newly discovered Eris, an object similar to Pluto, which led the International Astronomical Union to form a new category. 

[Chapter 17. Winds of the World: Global and Local Wind Systems] The following map shows semi-permanent high- and low-pressure systems in ____________.

[Chapter 3. What Is the Earth Made Of?] Cinnabar (HgS) is in the same mineral class as ________.

[Chapter 17. Winds of the World: Global and Local Wind Systems] The subtropical jet stream exists as a result of the boundary between a __________; the polar-front jet stream exists as a result of the boundary between __________.

[Chapter 14. Ocean Waters: The Blue of the Blue Planet] What prevents the individual water masses from becoming one single water mass?