A) Fuel+Oxygen =Catalyst +CO2+Water Vapor B) Light+Heat+Fuel= Water Vapor+CO2+Catalyst C) Fuel+Oxygen = Light+Heat D) Fuel+Oxygen= Light+Heat+Carbon Dioxide+ Water Vapor E) None of the answers listed
A) The discovery of fossil fuels B) Allowing trees to grow to maturity C) Tim Tebow D) Carbon Sinks E) The combustion of fossil fuels
A) None of the answers listed B) It is a carbon sink C) It shows a way to store carbon D) It is a reason that the carbon cycle is out of balance. E) It shows atmospheric Carbon Dioxide
A) Usually just in trees B) Only in the Earth's Atmosphere C) In the water molecules within our oceans. D) Only stored in fossil fuels E) Inside all living things
A) False B) True
A) Both involve the transfer of materials exclusively between plants and animals B) Both cycles stop working below freezing C) Both involve the transfer of materials between animals, plants and the earth D) Both involve liquid substances falling out out of the atmosphere to the Earth. E) That cycle's crazy. Terrible. Knucklehead.
A) Wood produces twice as much CO2 than propane per unit burned. B) Because the trees that wood comes from are a more active part of the carbon cycle, carbon dioxide created from the combustion of wood would be less likely to contribute to long term climate change. C) Each fuel produces water vapor. D) Propane Propane Gas Combustion (Ethane) C3H8 + 5O2 = 3 CO2 creates fewer units of CO2 per unit of fuel combusted than paraffin Paraffin: (used in modern candles) C25H52 + 38 O2 = 25 CO2 + 26 H2O E) Because propane comes from carbon that has been stored for millions of years, it is generally considered to be a fuel that is better at balancing the carbon cycle.
A) Something that adds carbon to the Earth's crust B) None of the answers listed. C) Something that removes carbon from the Earth's atmosphere D) Something that removes carbon from the Earth's crust. E) Something that adds carbon to the atmosphere.
A) Coal and oil produce the same amount of water vapor through combustion B) While coal has the greatest amount of carbon in its formula, wood produces more CO2 through combustion C) Propane and methane produce the same amount of C02 through combustion. D) Propane produces less Carbon Dioxide than Natural Gas/Methane when combusted E) Paraffin has the second greatest amount of Carbon in its formula
A) The Gulf War B) The Industrial Revolution C) Super Bowl XLVI D) The Civil War E) The American Revolution
A) The carbon rich bodies of animals and plants put carbon back into the Earth after they die and become buried. B) None of the answers listed. C) Humans pump large amounts of C02 into large underground storage tanks called carbon sinks D) All rocks absorb C02 over time E) Tree roots put carbon dioxide back into the soil |