Welcome to the Quiz!
This quiz contains 10 questions from a mix of 1 subtopics.
What is the primary source of carbon for producers in the carbon cycle?
fossil fuels
carbohydrates
atmospheric CO2
organic matter
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Which process converts CO2 into carbohydrates?
decomposition
respiration
combustion
photosynthesis
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How are fossil fuels formed in the carbon cycle?
through respiration
through a lack of decomposition of organic matter under high temperature and pressure
through photosynthesis
through weathering of sedimentary rocks
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What is released into the atmosphere when fossil fuels are burned?
nitrogen
water vapour
carbon dioxide
oxygen
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Which process releases carbon stored in sedimentary rocks back into the environment?
volcanic activity
weathering
respiration
photosynthesis
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What typically happens to local atmospheric CO2 levels during daylight hours?
they fluctuate randomly
they increase
they remain constant
they decrease
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Which of the following is a consequence of increasing greenhouse gas emissions?
increased solubility of CO2 in oceans
decreased atmospheric CO2 levels
increased photosynthesis rates
accelerated global warming
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How does deforestation affect the carbon cycle?
it increases photosynthesising biomass
it lowers the capacity to remove CO2 from the atmosphere
it decreases atmospheric CO2 levels
it increases the solubility of CO2 in oceans
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How does global warming affect the solubility of CO2 in oceans?
it increases the solubility of CO2
it decreases the solubility of CO2
it causes the ocean to absorb more CO2
it has no effect on the solubility of CO2
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What happens to CO2 in the ocean as a result of decreased solubility due to global warming?
it is released into the atmosphere
it is absorbed by marine organisms
it is stored in fossil fuels
it is converted into carbohydrates
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