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Carbon Cycle and Fossil Fuels MCQ Quiz Online

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MCQs on Carbon Cycle and Fossil Fuels Quiz

MCQ: In carbon cycle, the flow of energy is

linear
cyclical
reversible
irreversible

MCQ: Coal, natural gas and oil are forms of

fossil fuels only
carbon compounds only
nitrogen compounds
fossil fuels and carbon compounds

MCQ: During respiration, the carbon dioxide (CO2) is

produced
released in the environment
absorbed
depleted