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Oceans
| Question | Answer |
|---|---|
| which type of ocean water would contain LESS dissolved oxygen? | warm ocean water in tropical areas |
| Which dissolved gas is added to ocean water as a result of photosynthesis? | oxygen |
| Hw do mussles and clams adapt to changing tides near the shore? | they tightly close their shells when the tide goes out |
| This piece of equipment uses sound waves to measure ocean depth | sonar |
| Why are marine ecosystems so unique? | they rely on many different abiotic and biotic factors for survival |
| What is an area where fresh and salt water mix along the coast called? | Estuary |
| How do deep sea species get energy to live since sunlight is not available? | Produce energy through chemical reactions |
| In this ecosystem the water is brackish | estuaries |
| Buoy technology assists coastlines worldwide by | detecting tsunami intensity allowing for early evacuation of coastlines. |
| Entire ocean food webs would collapse and all other ocean organisms would probably not survive if this food source were not available | plankton |
| Are fish, algae or microbes the most abundant form of ocean life? | microbes |
| How do oyster impact the water quality of an estuary? | They filter out and consume pollution improving the water quality in the estuary. |
| In what part of the oceans are the richest deposits of oil and natural gas located? | continental shelf |
| Winds pushing water away from shore results in a process called | upwelling. |
| density currents in the ocean are caused by | differences in salinity and temperature |
| As the ocean warms, dissolved carbon dioxide is released into the atmosphere. From what part of the ocean is this gas most likely released? | at the surface of the ocean |
| This invention changed scuba diving and allowed divers to spend more time underwater. | the aqua lung |
| This invention allows individual to perform research at depths greater than 100 feet. | submersibles |
| Which technology is most effective in monitoring large areas of the ocean floor? | satellites |
| Which two gasses are most needed by plants and animals living in the ocean? | carbon dioxide and oxygen |
| This organism is the largest source of dissolved oxygen in the oceans. | algae growth |
| List two reasons estuaries are important habitats for many marine organisms. | more nutrients available many areas to hid from predators |
| Why is productivity greatest near the oceans's surface? | sunlight is more prevalent allowing photosynthesis to take place |
| Describe water distribution in an estuary. | fresh water is closer to the surface than the saltwater |
| In this ecosystem organisms must be able to tolerate both fresh and saltwater. What is it? | estuary |
| what happens to nutrients in the ocean as a result of upwelling? | upwelling carries nutrients to the surface of the ocean |
| Nutrient rich salt marshes and mangrove forests of the Florida Everglades describes which ocean ecosystem? | estuaries |
| One major impact on ocean environments if estuaries were not present | more pollutants would be found in the oceans. |
| What happens to fish that become popular food for consumers? | numbers of this fish decrease |
| Organisms that live in this ecosystem must be able to tolerate changes in both temperature and salinity | intertidal zone |
| Which technology most accurately map the ocean floor | sonar |
| How does upwelling in the ocean affect algae populations in the area? | algae become abundant |
| These technologies must be able to waistband extreme water pressures. | submersibles and ROVs |
| estuaries are productive ecosystems because | they receive nutrients from both rivers and oceans |
| This feature protects inland bodies of water from contamination by salt water. | estuaries |
| What happens in areas where upwelling occurs? | large numbers of animals are found here because nutrients are increased by the movement of water. |
| What environmental factor in estuaries must organisms adapt to ? | constant changes in salinity |
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8teach8