Biogeochemical Cycle: Question Preview (ID: 531)

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The burning of fossil fuels has the greatest and most direct impact on the
a) rock cycle b) water cycle c) carbon cycle d) nitrogen cycle
Carbon is used to make sugars in which step of the carbon cycle?
a) photosynthesis b) respiration c) digestion d) transpiration
Carbon is removed from the atmosphere through what process?
a) burning fossil fuels b) deforestration c) respiration d) photosynthesis
Where is carbon stored in the largest amounts on Earth?
a) atmosphere b) oceans c) lithosphere d) ice caps
Which is the possible path of the movements of nitrogen in the nitrogen cycle?
a) soil - air- plants-air-animals-soil b) soil-animals-plants-air-soil c) air-animals-soil-plants-air d) air-soil-plants-animals-soil-air
What are the primary sources of energy that drive the movement of matter among reservoirs?
a) the Sun and the plants b) animal and solid Earth c) solar and geothermal d) plants and animals
Of these, which force is most directly responsible for creation of fossil fuels?
a) displacement b) erosion c) pressure d) tectonic activity
Movement of carbon from geosphere to the atmosphere can be accomplished by
a) burning of fossil fuels b) photosynthesis c) respiration d) all of the above
In which reservoir is dissolved carbon dioxide abundant?
a) fossil fuels b) oceans c) organic waste d) plants
Most carbonates held in the geosphere take which form?
a) carbon monoxide b) carbon dioxide c) limestone d) methane
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