Climate Change Science Quiz

What is the primary cause of the current global climate change?

• Volcanic eruptions

• Deforestation

• Human activities, especially burning fossil fuels

• Changes in Earth's orbit

Which gas is the most abundant greenhouse gas in Earth's atmosphere?

• Carbon dioxide (CO2)

• Methane (CH4)

• Nitrous oxide (N2O)

• Water vapor (H2O)

What percentage of the sun's energy is absorbed by Earth's surface?

• 10%

• 30%

• 50%

• 70%

Which of the following activities produces the most carbon dioxide?

• Driving cars

• Industrial farming

• Cutting down forests

• Burning fossil fuels for electricity and heat

What is the term for the gradual increase in Earth's average surface temperature?

• Global warming

• Ozone depletion

• Ocean acidification

• Desertification

Which sector is the largest source of global greenhouse gas emissions?

• Agriculture

• Transportation

• Energy production

• Waste management

What is the role of carbon sinks in climate change?

• They increase carbon emissions

• They absorb more carbon than they release

• They release methane into the atmosphere

• They accelerate global warming

What is the significance of the 2°C target in climate policy?

• It's the threshold for irreversible climate change

• It's the estimated cooling needed to stop climate change

• It’s the maximum temperature rise deemed safe to avoid severe impacts

• It's the limit for natural climate variability

Which of the following is a result of melting polar ice caps?

• Reduced global temperatures

• Rising sea levels

• More agricultural land

• Decrease in coastal flooding

What is the greenhouse effect?

• The warming of the Earth due to human activity

• The trapping of the sun's heat by gases in Earth's atmosphere

• The destruction of the ozone layer by greenhouse gases

• The reflection of solar radiation back into space