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