[Chapter 17. Winds of the World: Global and Local Wind Systems]  A very fast high-altitude river of air that forms in the upper troposphere is called a(n) __________.

[Chapter  22. The Sun, The Stars, and Deep Space] What important forces balance each other within a star as it reaches its equilibrium condition?

[Chapter 16. The Air We Breathe: Introducing the Earth’s Atmosphere] The atmospheric greenhouse effect is responsible for _____.

[Chapter 15. Marine Geology: The Study of Ocean Basins and Coasts] The balance between sediment supplied and sediment removed on a beach is known as ______.

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

[Chapter 5. The Rest of the Rock Cycle: Sedimentary and Metamorphic Rocks] According to the graph below, what grade of metamorphic rock would develop at 6 kbar and 550°C?

[Chapter 20. Introducing Astronomy: Looking Beyond the Earth] The primary difference between a total solar eclipse and a partial solar eclipse is that a total solar eclipse is seen from a position on the Earth in the Moon’s __________ and a partial solar eclipse is seen from a position on the Earth in the Moon’s __________.

[Chapter 8 and 9: Geological Time and Geological History] If 75% of 238U has decayed to 206Pb, how many half-lives have passed?

[Chapter 2. The Way the Earth Works Plate Tectonics] According to the image below, where is new oceanic crust being formed?

[Chapter 14. Ocean Waters: The Blue of the Blue Planet] Kelp (large brown algae) grows along the western coast of North America because of the __________ nutrient-rich waters provided by __________.