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Climate Change Fundamentals

Climate Change

A set of multiple-choice questions testing factual recall about climate change.

climate science global warming environmental science
8 Questions Medium Ages 12+ Apr 10, 2026

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About this Study Set

This study set covers Climate Change through 8 practice questions. A set of multiple-choice questions testing factual recall about climate change. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 8 questions from the Climate Change Fundamentals study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which of the following gases is the most significant contributor to the enhanced greenhouse effect due to human activities?
  • A Methane (CH4)
  • B Nitrous oxide (N2O)
  • C Carbon dioxide (CO2)
  • D Ozone (O3)
2 The Intergovernmental Panel on Climate Change (IPCC) is a leading international body for assessing what?
  • A Economic impacts of climate change
  • B Climate change science
  • C Renewable energy technologies
  • D Ocean acidification research
3 What is the primary cause of the observed increase in global average temperatures since the mid-20th century?
  • A Natural variations in solar activity
  • B Volcanic eruptions
  • C Human-caused emissions of greenhouse gases
  • D Changes in ocean currents
4 Which of these phenomena is a direct consequence of rising global temperatures leading to a reduction in Earth's reflective surface?
  • A Increased cloud cover
  • B Decreased sea ice extent
  • C More stable weather patterns
  • D Expansion of polar ice sheets
5 The 'Paris Agreement' is an international treaty adopted in 2015 with the goal of limiting global warming to well below 2, preferably to 1.5 degrees Celsius, compared to pre-industrial levels. What is the primary mechanism it relies on?
  • A Global carbon tax implementation
  • B Mandatory geoengineering projects
  • C National Determined Contributions (NDCs) from signatory countries
  • D Formation of a global climate police force
6 Ocean acidification, a significant impact of increased atmospheric CO2, is primarily caused by the absorption of CO2 by seawater, which leads to a decrease in:
  • A Salinity
  • B Temperature
  • C pH
  • D Oxygen levels
7 Which of the following is a major source of anthropogenic methane emissions?
  • A Burning of fossil fuels for electricity
  • B Industrial manufacturing processes
  • C Deforestation and land-use change
  • D Livestock farming and natural gas leakage
8 The term 'climate feedback loop' refers to processes that can amplify or dampen the effects of climate change. Which of the following is an example of a positive feedback loop?
  • A Increased cloud cover reflecting sunlight
  • B Melting Arctic permafrost releasing methane
  • C Increased plant growth absorbing CO2
  • D Ocean absorbing more heat
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