Environmental Science Exam
What is the chemical equation for photosynthesis?
6CO2 + 6H2O + light energy > C6H12O6 + 6O2
What are the effects of nitrogen oxide
Acid rain
What are the effects of sulfur dioxide?
Acid rain
What are the three types of coal?
Anthracite, bituminous, and lignite
What is the chemical equation for respiration?
C6H12O6 + 6O2 > 6CO2 + 6H2O + light energy
What is the chemical equation for the combustion of methane?
CH4 +2O2 > CO2 + H2O + energy
What are the additional byproducts of petroleum products?
Carbon monoxide and particulate matter (PM)
Which fuel releases the most greenhouse gases?
Coal
How is coal classified?
Coal is classified by its hardness and carbon content.
What is the difference between developed and developing countries in terms of energy use?
Developed countries require much more energy than developing countries.
How was petroleum formed?
Diatoms died and sank to the bottom of the ocean, and then were covered by sediment.
What products are produced from coal?
Energy
What is the main use for coal?
Energy in thermoelectric power plants
What products are produced from petroleum?
Gas, diesel, kerosene, tar, rubber, etc.
How does CO2 and other greenhouse gases contribute to global warming?
Greenhouse gases get trapped in the atmosphere and begin to heat the earth.
What are the effects of particulate matter?
Haze and asthma attacks
What products are produced from natural gas?
Heating and cooking
What is the main use for natural gas?
Heating homes
Respiration breathes out carbon dioxide into the air, and photosynthesis takes in the carbon dioxide and creates oxygen.
How does respiration and photosynthesis affect the carbon cycle?
What are the effects of mercury?
Methyl mercury
Which fuel emits the least greenhouse gases?
Natural gas
How was natural gas formed?
Plants and animals died and were trapped in shale.
How was coal formed?
Prehistoric plant life died and sank to the bottom of swamps, and then were covered by sediment and rock.
What are the effects of carbon monoxide?
Suffocation
What are the byproducts of coal?
Sulfur dioxide, nitrogen oxide, and mercury.
Exothermic
The _____ part of combustion is when energy is given off in the form of heat.
Endothermic
The _____ part of combustion is when energy reacts to oxygen.
What is combustion?
The burning of fossil fuels to release energy
Nucleic acids
They makeup DNA and RNA.
Carbohydrates
They provide short-term energy.
Proteins
They serve as enzymes in the body, which tells the cells what to do.
Lipids
They store energy.
What is the main use for petroleum?
Transportation
Long carbon chains
What are polymers?
Proteins, carbohydrates, lipids, and nucleic acids.
What are the 4 major macromolecules?
Carbon dioxide
What is the byproduct of combustion?
Everywhere
Where is carbon found in the environment?
They were formed before the presence of dinosaurs.
Why are petroleum, coal, and natural gas called fossil fuels?
Renewable resources
_____ can be replaced.
Nonrenewable resources
_____ cannot be replaced by natural means as fast as they are being used.
Mercaptan
_____ is added to natural gas to help identify leaks. It smells like rotten eggs.