Completar frases Carbon intro "game"Versión en línea Used to intro carbon cycle por Wally Mason 1 Dioxide Carbon Carbon Oxygen Carbon Carbon Calcium Limestone Carbo Coal Dioxide Carbon gas Petroleum Oxygen Carbon Dioxide Dioxide Natural Carbon Hydrogen Carbon Scavenger Hunt Use google to search for these answers . . . 1 . The top 2 most abundant elements in living things are . . . . , 2 . Which gas do animals breathe out during respiration ? - 3 . Which gas do plants take in during photosynthesis ? ( - ) 4 . Where do plants get their mass ? 5 . Which gas controls temperature on earth ? - 6 . What is the most abundant sedimentary rock on earth ? 7 . What elements are found in limestone ? , , 8 . What energy sources are currently used the most ? , - , 9 . What are the two main elements found in fossil fuels ? , 10 . What gas is released when fossil fuels are burned ? - 11 . Which element is present in questions 1 - 10 :
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