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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.

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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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