[CHAPTER 6. OCEAN CIRCULATION]   A transverse current is a ____.

[CHAPTER 1. AN OCEAN WORLD] What would a visitor approaching Earth from space see 4.4 billion years ago?

[CHAPTER 6. OCEAN CIRCULATION]   Surface water extends to a depth of about ____.

[CHAPTER 4. WATER AND OCEAN STRUCTURE] The wavelengths of light that penetrate deepest into the ocean are ____.

[CHAPTER 4. WATER AND OCEAN STRUCTURE] The components of ocean water whose quantities are less than 1 part per million (ppm) are considered ____.

[CHAPTER 3. THE OCEAN FLOOR] A depression along the boundary of a seamount where sediment has built-up is a(n) ____.

[CHAPTER 5. ATMOSPHERIC CIRCULATION] There are ____ major atmospheric circulation cells in each hemisphere of Earth.

[CHAPTER 6. OCEAN CIRCULATION]   The Canary Current is an example of a ____.

[CHAPTER 3. THE OCEAN FLOOR] Neritic sediments are found on the ____.

[CHAPTER 3. THE OCEAN FLOOR] What type of information can scientists derive from observing deep-ocean cores?