<p> Hydrosphere – Oceans Study Guides</p><p>Be sure you know the following vocab words and how they relate to the unit:</p><p>Upwelling Bioindicator Coral Reef</p><p>Hydrothermal vent Dissolved oxygen Seafloor Spreading</p><p>Chemosynthesis Sonar Abyssal plain</p><p>Plankton Scuba Bioluminescence</p><p>Nekton Satellite Submersibles</p><p>Benthos Estuary intertidal zone</p><p>Submarine canyon Trench Mariana Trench</p><p>Adaptation Evolution Natural Selection</p><p>The test will consist of mostly multiple choice, matching, and true and false questions.</p><p>Here is a sample of some questions that could be on the test:</p><p>1. Which of these organisms is a producer in a marine ecosystem? </p><p>A. gull B. worm C. Algae D. fish</p><p>2. In which oceanic zone do clams and crabs survive by burrowing in the sand? </p><p>A. Open Ocean zone B. intertidal zone C. oceanic D. Deep zone 3. How can sonar best be used to monitor the hydrosphere?</p><p>A. by creating an underwater sound analysis of marine life</p><p>B. by helping map and record distinct features of ocean basins</p><p>C. by recording changes in ocean water temperatures over time</p><p>D. by updating databases on water temperature and salinity</p><p>4. Which contributes most in supporting life on the deep ocean floor?</p><p>A. cold water temperatures</p><p>B. extreme water pressure</p><p>C. hydrothermal vents</p><p>D. lack of predators</p><p>5. Which causes cold ocean water to rise during an upwelling event?</p><p>A. motion of organisms</p><p>B. deep water currents</p><p>C. mass of nutrients</p><p>D. surface winds</p><p>5. In which part of the ocean do the greatest number of organisms live?</p><p>A. in the deep zone to escape predators</p><p>B. near the shore to burrow in the sand</p><p>C. close to the surface to be near the largest food source</p><p>D. in open ocean to regulate their bodies in cooler temps True or false (this is a sample of the types of true or false questions that could be on the test)</p><p>1. Genetic mutations are the cause of adaptations. ______</p><p>2. Hydrothermal vents are very harsh environments that do not support life on the ocean floor. ______</p><p>3. The neritic zone is so deep that water cannot penetrate the water down to the ocean floor. ______</p><p>4. An estuary is where ocean water meets fresh water. ______</p><p>5. Sonar is used to orbit the earth and get images of the ocean floor. ______</p><p>Matching (this is a sample of what a matching section might look like)</p><p>1. Plankton A. organisms that live on the ocean floor</p><p>2. chemosynthesis B. the process whereby organisms better adapted to their</p><p> environment tend to survive and produce more offspring</p><p>3. Benthos C. the small and microscopic organisms drifting or floating </p><p> in the sea or fresh water</p><p>4. Natural Selection D. the process where bacteria provide energy and </p><p> nutrients in the deep parts of the ocean near vents</p>