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- 1. Multiple Choice
Why is MOST of the freshwater on Earth not available for our use?All freshwater on Earth is easily accessible for use.It is frozen in the icecaps and glaciers.It is surface water.It is underground. - 2. Multiple ChoiceStudy the graph below. What is the dissolved solid that is most commonly found in Earth's oceans?calciummagneziumsulfursodium chloride (salt)
- 3. Multiple ChoiceSalinity is applied toWarm waterIce waterFresh waterSea water
- 4. Multiple ChoiceHow much of the earth's water is freshwater?50 %3 %97 %93 %
- 5. Multiple ChoiceOcean's cover what percent of the Earth's surface?70 %60 %10 %none of the above
- 6. Multiple ChoiceHow much of Earth's water is unavailable for humans to consume due to its high salinity?3%23%77%97%
- 7. Multiple ChoiceAll the water on, in , and surrounding the earthAtmosphereHydrosphereBiosphereLithosphere
- 8. Multiple ChoiceThis diagram models how toxic runoff can pollute a stream and alsoproduce acid rain.cause soil erosion.create algae blooms.pollute groundwater.
- 9. Multiple ChoiceThe process that cycles water around Earth and it's atmosphere is calledThe Natural CycleThe Carbon CycleThe Water Cycle
- 10. Multiple Choice
Earth is what kind of system?
Closed
Open
- 11. Multiple Choice
What is the primary source of all energy on Earth?
the sun
cellular respiration
photosynthesis
ATP
- 12. Multiple Choice
What is a biosphere?
The regions of the surface, atmosphere, & hydrosphere of the earth not occupied by living organisms
An environment that is unable to sustain life
An environment that is able to sustain life
The regions of the surface, atmosphere, & hydrosphere of the earth occupied by living organisms
- 13. Multiple Choice
Each of the following is an abiotic factor in the environment EXCEPT
temperature
soil
sunlight
plant life
- 14. Multiple Choice
What is pictured?
Salinity
Ocean Currents
Ice Caps
Pollution Distribution
- 15. Multiple Choice
The 5 main Ocean Currents are called:
Gyros
Gyres
Currents
Land Mass
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