The 20 quiz questions
Question 1 : Which gas is the main contributor to the greenhouse effect?
Possible answers:
- Helium (He)
- Nitrogen (N2)
- Carbon dioxide (CO2)
- Oxygen (O2)
Explanation: Carbon dioxide (CO2) is the main human-caused greenhouse gas, primarily from burning fossil fuels. Methane and water vapor also contribute.
Question 2 : Which international agreement aims to limit global warming to 1.5°C?
Possible answers:
- Convention de Rio
- Protocole de Kyoto
- Traité de Montréal
- Accord de Paris
Explanation: The Paris Agreement, signed in 2015 at COP21, commits 196 countries to limiting global warming well below 2°C, ideally 1.5°C compared to pre-industrial levels.
Question 3 : What plastic continent floats in the Pacific Ocean?
Possible answers:
- The Plastic Atlantis
- The 8th continent
- The 6th continent
- The 7th continent
Explanation: The "7th continent" or "Great Pacific Garbage Patch" is an accumulation zone of plastic waste in the North Pacific, three times the size of France.
Question 4 : What is biodiversity?
Possible answers:
- A renewable energy
- A type of pollution
- An agricultural technique
- The diversity of life
Explanation: Biodiversity refers to the variety of living beings on Earth: diversity of species, genes and ecosystems.
Question 5 : How many species disappear each day according to estimates?
Possible answers:
- 10-20
- 50-80
- 150-200
- 500-600
Explanation: According to scientists, between 150 and 200 species disappear every day, a rate 1000 times higher than the natural extinction rate.
Question 6 : Which country emits the most CO2 in the world?
Possible answers:
- Inde
- Russie
- États-Unis
- Chine
Explanation: China is the world's largest CO2 emitter with about 30% of global emissions, followed by the United States and India.
Question 7 : What does the ozone layer protect?
Possible answers:
- The solar wind
- Radio waves
- Meteorites
- Ultraviolet rays
Explanation: The ozone layer, located in the stratosphere, filters harmful ultraviolet (UV) rays from the sun, thus protecting life on Earth.
Question 8 : What does the acronym "COP" stand for in climate conferences?
Possible answers:
- Climate Observation Program
- Conference of the Parties
- Coalition for Planetary Protection
- Carbon Output Protocol
Explanation: COP stands for "Conference of the Parties", the signatory countries of the United Nations Framework Convention on Climate Change.
Question 9 : What percentage of the Amazon rainforest has been destroyed since 1970?
Possible answers:
- 5%
- 20%
- 40%
- 60%
Explanation: About 20% of the Amazon rainforest has been destroyed since 1970, mainly for cattle ranching and soybean cultivation.
Question 10 : Which renewable energy produces the most electricity in the world?
Possible answers:
- Hydroelectricity
- Solar power
- Geothermal energy
- Wind power
Explanation: Hydroelectricity accounts for about 60% of the world's renewable electricity production, thanks to dams and hydroelectric plants.
Question 11 : How long does a plastic bottle take to decompose in nature?
Possible answers:
- 50 years
- 100 years
- 250 years
- 450 years
Explanation: A plastic bottle takes between 400 and 500 years to decompose in nature. It breaks down into microplastics that pollute ecosystems.
Question 12 : Which sector is the largest emitter of greenhouse gases in France?
Possible answers:
- Transportation
- Agriculture
- The building
- Industry
Explanation: Transportation accounts for about 30% of GHG emissions in France, ahead of agriculture (19%), industry (18%), and buildings (17%).
Question 13 : What phenomenon refers to rising water levels due to climate change?
Possible answers:
- Global flooding
- Sea submersion
- Sea level rise
- The climate tsunami
Explanation: Sea level rise is caused by the thermal expansion of oceans and the melting of glaciers. It threatens millions of people living on coasts.
Question 14 : Which young Swedish activist launched "Fridays for Future"?
Possible answers:
- Greta Thunberg
- Emma Watson
- Alexandria Ocasio-Cortez
- Malala Yousafzai
Explanation: Greta Thunberg started her school strike for climate in 2018 in front of the Swedish Parliament, inspiring millions of young people worldwide.
Question 15 : What is "Earth Overshoot Day"?
Possible answers:
- Global pollution peak
- Depletion of annual resources
- Maximum temperature
- End of fossil fuels
Explanation: Earth Overshoot Day marks the date when humanity has consumed all the resources that Earth can renew in a year. In 2024, it was August 1st.
Question 16 : Which animal has become the symbol of global warming?
Possible answers:
- The polar bear
- The koala
- The panda
- The penguin
Explanation: The polar bear has become the symbol of global warming because its habitat, Arctic sea ice, is rapidly melting.
Question 17 : What is "greenwashing"?
Possible answers:
- An eco-label
- A gardening technique
- Deceptive green marketing
- A type of recycling
Explanation: Greenwashing is a deceptive marketing practice where a company presents itself as environmentally friendly without actually being so.
Question 18 : What is the European Union's carbon neutrality goal?
Possible answers:
- 2030
- 2040
- 2050
- 2060
Explanation: The European Union has committed to achieving carbon neutrality by 2050 as part of the European Green Deal.
Question 19 : Which marine animal is particularly threatened by plastic straws?
Possible answers:
- Whales
- Sea turtles
- Dolphins
- Sharks
Explanation: Sea turtles are very vulnerable to plastic straws and bags which they confuse with jellyfish. A viral video of a turtle with a straw in its nose raised awareness worldwide.
Question 20 : What does carbon footprint measure?
Possible answers:
- Water consumption
- Waste production
- Energy use
- CO2 emissions
Explanation: Carbon footprint measures the total amount of greenhouse gases emitted by an activity, product or person.




