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- 1. Multiple Choice
Decreasing ocean temperature causes the density of the water to ______.
decrease
increase
stay the same
fluctuate
- 2. Multiple Choice
Nutrients are brought to the surface for phytoplankton to use at _______.
gyres
eddies
upwellings
the equator
- 3. Multiple Choice
________ and _______ affect the ocean's density and cause the Global Conveyor Belt to travel
gravity and the Coriolis Effect
temperature and salinity
wind and climate
temperature and the Coriolis Effect
- 4. Multiple ChoiceCarbon dioxide and seawater combine to formcalcium carbonatecarbon monoxidecarbonic acid
- 5. Multiple ChoiceOcean acidification begins withpollution from shipscarbon dioxide released from combustiondumping of waste from cities into the ocean
- 6. Multiple Choice
An increase in the amount of nutrients in a lake is known asplanktonoligotrophiceutrophication - 7. Multiple Choice
In what zone does approximately 90% of all ocean life live?
photic (=euphotic)
aphotic
- 8. Multiple ChoiceLight does not reach the bottom of the ocean, yet certain species live there. Which best explains how species on the bottom of the ocean get energy to live?Algae and bacteria produce energy through photosynthesis.Hydrothermal vents produce energy through chemical reactions.Dead plants and animals produce energy through decomposition.Light comes from the core of the earth.
- 9. Multiple ChoiceDeep ocean technology has discovered organisms in hydrothermal vents that do not rely on sunlight to survive. What do these organisms use as their energy source?chemosynthesiselectrical chargehydropowerthermal heat
- 10. Multiple ChoiceAnimal members of the plankton community.PhytoplanktonMeroplanktonHoloplanktonZooplankton
- 11. Multiple ChoiceScientists use ______ to determine the oceans depth.SubmarineSonarHelicopterLight
- 12. Multiple ChoiceThe ocean is salty mainly due to the weathering & erosion that takes place on igneous rocks found in Earth’s crust and on the mountains. It is also salty due to the dead ocean animals whose bodies sink to the ocean floor.TrueFalse
- 13. Multiple Choice
You like to breathe? More than half of Earth's oxygen is created by ______________in the ocean, but their levels are declining because oceans are warming up.... 😠
phytoplankton
zooplankton
chemosynthesis, hydrothermal vents
agricultural plants
- 14. Multiple Choice
Another reason algae /phytoplankton are important is because these serve as _____________ to most food chains in the ocean
salinity protection
primary food source
barriers from strong currents/weather systems
- 15. Multiple Choice
Which ocean floor feature is the steep cliff-like drop beyond the continental shelf?
Continental Shelf
Continental Slope
Abyssal Plain
Ocean Trench
- 16. Multiple ChoiceWhat is chemosynthesis?Where bacteria use light energy to make glucose.Where plants use light energy to make glucoseWhere bacteria use chemical reactions to make glucose
- Answer choicesTagsAnswer choicesTags