AP Environmental Science Flashcards: Fossil Fuels

What this deck covers

This deck focuses on Fossil Fuels, giving you a quick way to review the definitions, rules, and examples that matter most for AP Environmental Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: Identify the chemical formula for methane.

Answer: The chemical formula is CH₄. One carbon atom bonded to four hydrogen atoms.

Flashcard 2: What does the term 'peak oil' refer to?

Answer: The point of maximum oil production rate. The theoretical point when oil production begins declining permanently.

Flashcard 3: What equipment is used to extract oil from the ground?

Answer: Oil rig. Drilling platform used for petroleum extraction from wells.

Flashcard 4: Name a major non-carbon emission from burning coal.

Answer: Sulfur dioxide (SO₂). Coal contains sulfur impurities that release SO₂ when burned.

Flashcard 5: What is the process of refining crude oil called?

Answer: Distillation. Separates crude oil into different petroleum products by boiling point.

Flashcard 6: What is the main disadvantage of fossil fuels?

Answer: Non-renewable and environmentally damaging. Finite supply and significant environmental pollution when used.

Flashcard 7: What is an oil refinery?

Answer: A facility where crude oil is processed and refined. Industrial plant that separates crude oil into usable products.

Flashcard 8: What is the main advantage of using natural gas over coal?

Answer: Lower carbon emissions. Natural gas burns cleaner with less carbon dioxide per unit energy.

Flashcard 9: Which fossil fuel is primarily used for transportation?

Answer: Oil is primarily used for transportation fuels. Refined into gasoline, diesel, and jet fuel for vehicles.

Flashcard 10: What is the primary environmental impact of natural gas leakage?

Answer: Methane emissions contribute to greenhouse effect. Methane is a potent greenhouse gas when released unburned.

Flashcard 11: Name a major non-carbon emission from burning coal.

Answer: Sulfur dioxide (SO₂). Coal contains sulfur impurities that release SO₂ when burned.

Flashcard 12: What is the term for the solid waste from coal combustion?

Answer: Fly ash. Fine particles of ash produced when coal burns in power plants.

Flashcard 13: Identify the chemical formula for methane.

Answer: The chemical formula is CH₄. One carbon atom bonded to four hydrogen atoms.

Flashcard 14: What is a significant risk associated with coal mining?

Answer: Mine collapses and worker safety. Underground mining poses structural and health hazards.

Flashcard 15: What is the process of refining crude oil called?

Answer: Distillation. Separates crude oil into different petroleum products by boiling point.

Flashcard 16: What is a common method for transporting oil internationally?

Answer: Oil tankers. Large ships designed for bulk petroleum transport across oceans.

Flashcard 17: What is a significant risk associated with coal mining?

Answer: Mine collapses and worker safety. Underground mining poses structural and health hazards.

Flashcard 18: What equipment is used to extract oil from the ground?

Answer: Oil rig. Drilling platform used for petroleum extraction from wells.

Flashcard 19: What is the definition of fossil fuels?

Answer: Fossil fuels are energy resources formed from decomposed organic matter. Formed over millions of years under heat and pressure.

Flashcard 20: List three main types of fossil fuels.

Answer: Coal, oil, and natural gas. These are the most commonly extracted and used fossil fuels.

Flashcard 21: Which fossil fuel is typically formed under the sea?

Answer: Oil. Marine sediments and pressure create ideal oil formation conditions.

Flashcard 22: Identify the main gas released during coal combustion.

Answer: Carbon dioxide (CO₂). Complete combustion of carbon produces carbon dioxide.

Flashcard 23: What is the main environmental concern with burning fossil fuels?

Answer: Release of greenhouse gases causing climate change. CO₂ and other emissions trap heat in the atmosphere.

Flashcard 24: What is a common product derived from crude oil?

Answer: Petroleum products like gasoline. Crude oil refining produces many useful hydrocarbon compounds.

Flashcard 25: Identify a byproduct of natural gas extraction.

Answer: Hydrogen sulfide (H₂S). H₂S is a toxic gas produced during natural gas processing.

Flashcard 26: Identify the primary fossil fuel used in electricity generation globally.

Answer: Coal. Coal-fired power plants dominate global electricity production.

Flashcard 27: State the formula for calculating energy efficiency.

Answer: $\text{Efficiency} = \frac{\text{Useful Energy Output}}{\text{Total Energy Input}} \times 100$. Measures how much input energy becomes useful output energy.

Flashcard 28: What environmental impact is associated with oil spills?

Answer: Water pollution and harm to marine life. Oil coats marine organisms and disrupts ecosystems.

Flashcard 29: State the formula for calculating energy efficiency.

Answer: $\text{Efficiency} = \frac{\text{Useful Energy Output}}{\text{Total Energy Input}} \times 100$. Measures how much input energy becomes useful output energy.

Flashcard 30: What is the main component of gasoline?

Answer: Octane (C₈H₁₈). An eight-carbon hydrocarbon that resists engine knocking.

Flashcard 31: Which fossil fuel is typically formed under the sea?

Answer: Oil. Marine sediments and pressure create ideal oil formation conditions.

Flashcard 32: Which gas is a major component of natural gas?

Answer: Methane (CH₄) is a major component. Natural gas consists mainly of methane molecules.

Flashcard 33: What is a common product derived from crude oil?

Answer: Petroleum products like gasoline. Crude oil refining produces many useful hydrocarbon compounds.

Flashcard 34: What is the main source of energy in fossil fuels?

Answer: Stored chemical energy from ancient organic matter. Solar energy captured by plants millions of years ago.

Flashcard 35: What is hydraulic fracturing commonly known as?

Answer: Fracking. High-pressure water fractures rock to release trapped gas.

Flashcard 36: What is the term for coal deposits that can be mined economically?

Answer: Coal reserves. Coal that is accessible and profitable to extract.

Flashcard 37: What is the main advantage of using natural gas over coal?

Answer: Lower carbon emissions. Natural gas burns cleaner with less carbon dioxide per unit energy.

Flashcard 38: What is the process of converting coal into liquid fuels?

Answer: Coal liquefaction. Industrial process converting solid coal into liquid hydrocarbons.

Flashcard 39: Which fossil fuel is considered the cleanest burning?

Answer: Natural gas. Produces fewer pollutants and CO₂ per unit energy than coal or oil.

Flashcard 40: Which fossil fuel is often associated with acid rain?

Answer: Coal, due to sulfur emissions. Sulfur dioxide from coal forms acidic precipitation.

Flashcard 41: What is the primary method of transporting natural gas?

Answer: Pipelines. Long-distance transport system for gaseous fuel distribution.

Flashcard 42: Which fossil fuel has the highest carbon content?

Answer: Coal. Coal has the highest carbon-to-hydrogen ratio of fossil fuels.

Flashcard 43: Identify a byproduct of natural gas extraction.

Answer: Hydrogen sulfide (H₂S). H₂S is a toxic gas produced during natural gas processing.

Flashcard 44: What is the primary use of coal?

Answer: Coal is primarily used for electricity generation. Coal burns in power plants to produce electrical energy.

Flashcard 45: What process converts organic material into fossil fuels over time?

Answer: The process is called carbonization. Heat and pressure gradually transform organic matter into carbon-rich fuels.

Flashcard 46: Which fossil fuel forms from plant material?

Answer: Coal. Coal originates from compressed ancient plant matter in swamps.

Flashcard 47: Which fossil fuel is often associated with acid rain?

Answer: Coal, due to sulfur emissions. Sulfur dioxide from coal forms acidic precipitation.

Flashcard 48: Which fossil fuel is used in fertilizer production?

Answer: Natural gas. Methane provides hydrogen for ammonia-based fertilizer synthesis.

Flashcard 49: What is a common method for transporting oil internationally?

Answer: Oil tankers. Large ships designed for bulk petroleum transport across oceans.

Flashcard 50: What is an oil refinery?

Answer: A facility where crude oil is processed and refined. Industrial plant that separates crude oil into usable products.

Flashcard 51: What is the main component of gasoline?

Answer: Octane (C₈H₁₈). An eight-carbon hydrocarbon that resists engine knocking.

Flashcard 52: What is the definition of fossil fuels?

Answer: Fossil fuels are energy resources formed from decomposed organic matter. Formed over millions of years under heat and pressure.

Flashcard 53: What is the main use of natural gas in households?

Answer: Heating and cooking. Natural gas burns cleanly for thermal energy applications.

Flashcard 54: What is the process of converting coal into liquid fuels?

Answer: Coal liquefaction. Industrial process converting solid coal into liquid hydrocarbons.

Flashcard 55: Which fossil fuel has the highest carbon content?

Answer: Coal. Coal has the highest carbon-to-hydrogen ratio of fossil fuels.

Flashcard 56: Identify the main gas released during coal combustion.

Answer: Carbon dioxide (CO₂). Complete combustion of carbon produces carbon dioxide.

Flashcard 57: Which fossil fuel forms from plant material?

Answer: Coal. Coal originates from compressed ancient plant matter in swamps.

Flashcard 58: What environmental impact is associated with oil spills?

Answer: Water pollution and harm to marine life. Oil coats marine organisms and disrupts ecosystems.

Flashcard 59: Which fossil fuel is primarily used for transportation?

Answer: Oil is primarily used for transportation fuels. Refined into gasoline, diesel, and jet fuel for vehicles.

Flashcard 60: Which gas is a major component of natural gas?

Answer: Methane (CH₄) is a major component. Natural gas consists mainly of methane molecules.

Flashcard 61: What is the primary use of coal?

Answer: Coal is primarily used for electricity generation. Coal burns in power plants to produce electrical energy.

Flashcard 62: What is the term for the solid waste from coal combustion?

Answer: Fly ash. Fine particles of ash produced when coal burns in power plants.

Flashcard 63: What is the main environmental concern with burning fossil fuels?

Answer: Release of greenhouse gases causing climate change. CO₂ and other emissions trap heat in the atmosphere.

Flashcard 64: Which fossil fuel is considered the cleanest burning?

Answer: Natural gas. Produces fewer pollutants and CO₂ per unit energy than coal or oil.