Carbon Cycle and Fossil Fuels MCQs Quiz Online PDF Book Download
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MCQ on Carbon Cycle and Fossil FuelsQuiz Book Download
MCQ: In carbon cycle, flow of energy is
MCQ: Coal, natural gas and oil are forms of
- fossil fuels
- carbon compounds
- nitrogen compounds
- both A and B
MCQ: During respiration, carbon dioxide (CO2) is
- released in the environment