A) Fuel+Oxygen =Catalyst +CO2+Water Vapor B) None of the answers listed C) Light+Heat+Fuel= Water Vapor+CO2+Catalyst D) Fuel+Oxygen = Light+Heat E) Fuel+Oxygen= Light+Heat+Carbon Dioxide+ Water Vapor
A) Allowing trees to grow to maturity B) The discovery of fossil fuels C) The combustion of fossil fuels D) Tim Tebow E) Carbon Sinks
A) It shows atmospheric Carbon Dioxide 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) None of the answers listed
A) Only stored in fossil fuels B) Usually just in trees C) Inside all living things D) In the water molecules within our oceans. E) Only in the Earth's Atmosphere
A) True B) False
A) Both involve liquid substances falling out out of the atmosphere to the Earth. B) Both involve the transfer of materials between animals, plants and the earth C) That cycle's crazy. Terrible. Knucklehead. D) Both involve the transfer of materials exclusively between plants and animals E) Both cycles stop working below freezing
A) 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. B) Wood produces twice as much CO2 than propane per unit burned. C) 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. D) Each fuel produces water vapor. E) 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
A) Something that adds carbon to the Earth's crust B) Something that adds carbon to the atmosphere. C) Something that removes carbon from the Earth's atmosphere D) None of the answers listed. E) Something that removes carbon from the Earth's crust.
A) Paraffin has the second greatest amount of Carbon in its formula B) Propane and methane produce the same amount of C02 through combustion. C) Propane produces less Carbon Dioxide than Natural Gas/Methane when combusted D) While coal has the greatest amount of carbon in its formula, wood produces more CO2 through combustion E) Coal and oil produce the same amount of water vapor through combustion
A) The Industrial Revolution B) Super Bowl XLVI C) The Gulf War D) The American Revolution E) The Civil War
A) Humans pump large amounts of C02 into large underground storage tanks called carbon sinks B) Tree roots put carbon dioxide back into the soil C) None of the answers listed. D) All rocks absorb C02 over time E) The carbon rich bodies of animals and plants put carbon back into the Earth after they die and become buried. |