Greenhouse Gases and Climate ChangeAQA GCSE Chemistry: Flashcards

Card 1 of 110 of 11 known

Question

Name the three main greenhouse gases.

Tap or press Space to reveal

Tap card or press Space to flip

See all 11 cards

Name the three main greenhouse gases.: Water vapour, carbon dioxide and methane.
What type of radiation do greenhouse gases absorb and re-emit?: Long wavelength radiation.
How does the greenhouse effect keep the Earth warm?: Greenhouse gases absorb long wavelength radiation from the Earth's surface and re-emit it in all directions, trapping energy near the surface.
Give two human activities that increase carbon dioxide in the atmosphere.: Burning fossil fuels and deforestation.
Give two human activities that increase methane in the atmosphere.: Livestock farming and rice paddy fields.
What is considered a major cause of global climate change?: An increase in average global temperature.
Name two potential effects of global climate change.: Rising sea levels and changing patterns of rainfall (also extreme weather and changes to wildlife distribution).
Why is it important to consider uncertainty when evaluating climate change evidence?: Because measurements and models are never perfectly precise, so conclusions may have a margin of error.
What is peer review?: The process by which other scientists check and evaluate scientific work before it is published.
Why is peer review important for climate change evidence?: It helps ensure that results are checked and validated by other scientists before being trusted or published.
Why does communicating climate results to a wide audience matter?: Because policymakers and the public, not just scientists, need to understand the evidence to make informed decisions.