6.5 Fossil Fuels

• What are fossil fuels primarily used for?

  Energy production
• Fossil fuels are formed from the ancient remains of plants and animals
• Order the stages of coal formation:

  1️⃣ Peat

  2️⃣ Lignite

  3️⃣ Bituminous coal

  4️⃣ Anthracite
• Fossil fuel formation requires millions of years of intense heat and pressure.
• Which greenhouse gases are released from fossil fuels?

  CO2 and methane
• Oil spills from fossil fuels can contaminate aquatic ecosystems
• What is the primary composition of natural gas?

  Methane
• Order the stages of fossil fuel formation:

  1️⃣ Accumulation of organic material

  2️⃣ Transformation under heat and pressure

  3️⃣ Formation of hydrocarbons

  4️⃣ Storage in geological formations
• What is the source of oil and natural gas?

  Marine microorganisms
• Fossil fuels are renewable energy resources.

  False
• Which stage of coal formation has the highest carbon content?

  Anthracite
• The source material for oil and natural gas is marine microorganisms
• What environmental impact is associated with greenhouse gas emissions from fossil fuels?

  Climate change
• Natural gas emits less CO2 than coal when burned.
• What is the initial stage of coal formation?

  Peat
• Oil and natural gas are formed from marine microorganisms like plankton
• Match the hydrocarbon with its chemical formula:

  Methane ↔️ $CH_{4}$

  General Hydrocarbon ↔️ $C_{n}H_{2n + 2}$
• Order the main uses of fossil fuels by their primary applications:

  1️⃣ Power generation

  2️⃣ Industrial processes

  3️⃣ Transportation

  4️⃣ Heating
• Which fossil fuel is formed from terrestrial plant material?

  Coal
• Natural gas is primarily composed of methane
• Match the fossil fuel with its main environmental impact:

  Coal ↔️ High CO2 emissions

  Oil (Crude Oil) ↔️ Oil spills

  Natural Gas ↔️ Methane leakage
• Order the stages of coal formation:

  1️⃣ Peat

  2️⃣ Lignite

  3️⃣ Bituminous coal

  4️⃣ Anthracite
• What is the source of fossil fuels?

  Ancient organic material
• The initial stage in coal formation is called peat
• Order the stages of coal formation from earliest to latest.

  1️⃣ Peat

  2️⃣ Lignite

  3️⃣ Bituminous coal

  4️⃣ Anthracite
• What type of coal has the highest carbon content?

  Anthracite
• Oil and natural gas are formed from marine microorganisms like plankton
• Hydrocarbons are primarily composed of carbon and hydrogen.
• Why are fossil fuels considered non-renewable resources?

  Unique formation conditions
• Coal is formed from terrestrial plant matter.
• What is the primary composition of oil and natural gas?

  Hydrocarbons
• Coal is mainly used for power generation and industrial heating
• Match each fossil fuel with its environmental impact.

  Coal ↔️ High particulate matter, acid mine drainage

  Oil ↔️ Oil spills, smog formation

  Natural Gas ↔️ Methane leakage, fracking pollution
• Natural gas emits more $CO_{2}$ than coal when combusted.


  False
• What type of water pollution is caused by coal mining?

  Acid mine drainage
• Fossil fuels are non-renewable resources, while renewable energy sources are sustainable
• Fossil fuels contribute to climate change with high $CO_{2}$ emissions.
• Match each factor with its corresponding advantage or disadvantage for fossil fuels and renewable energy sources.

  Sustainability ↔️ Fossil fuels: Non-renewable ||| Renewable energy: Renewable

  Environmental Impact ↔️ Fossil fuels: High emissions ||| Renewable energy: Minimal footprint

  Reliability ↔️ Fossil fuels: Consistent ||| Renewable energy: Intermittent
• What is the primary use of fossil fuels?

  Energy production
• Natural gas is primarily composed of methane