Show:
climate systems
Greenhouse gases
impacts
feedback loop
solutions
100

explain two differences between natural and human-caused climate change 

  • Natural = slower, caused by volcanoes/solar changes

Human = faster, caused by fossil fuels/deforestation


100

Name TWO greenhouse gases and their sources

  • CO₂ → fossil fuels

  • CH₄ → livestock/landfills

  • N₂O → fertilizers

100

 Give TWO environmental impacts of climate change

  • Rising sea levels

  • Stronger storms

  • Droughts

  • Melting glaciers

100

 Define a positive feedback loop AND give ONE example

  • Process that amplifies change

Example: ice melt → more heat absorbed


100

 Give TWO mitigation strategies AND explain how they reduce climate change

  • Renewable energy → reduces CO₂ emissions

  • Reforestation → absorbs CO₂

200

Why is the rate of climate change important? Give TWO reasons/answers

  • Ecosystems can’t adapt quickly

  • Increases extreme events

  • Disrupts agriculture and food systems

200

Why is methane considered more impactful than CO₂ in the short term? Give TWO reasons

  • Higher global warming potential (GWP)

  • Traps more heat per molecule

  • Stronger effect over shorter time period

200

 Explain TWO ways climate change affects human systems

  • Food shortages (agriculture disruption)

  • Economic damage (storms, disasters)

Health risks (heatwaves, disease spread)


200

Give TWO examples of feedback loops and explain how they increase warming

  • Ice-albedo: less ice → less reflection → more heat

  • Permafrost: thaw → methane release → more warming

  • Water vapor: warming → more vapor → more heat trapped

200

Compare mitigation and adaptation with ONE example each

  • Mitigation = reduces cause (solar energy)

  • Adaptation = adjusts to impact (sea walls, drought crops)