Topic 6: Atmosphere
16 review questions with answers for Topic 6: Atmosphere, marked SL. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Gases such as H₂O, CO₂, CH₄ and N₂O that absorb and re-emit infrared (longwave) radiation, warming the Earth?
- Ultraviolet (UV) radiation
- Greenhouse gases (GHGs)Right answer
- Enhanced greenhouse effect
- Stratospheric ozone layer
All 16 questions and answers
Gases such as H₂O, CO₂, CH₄ and N₂O that absorb and re-emit infrared (longwave) radiation, warming the Earth?
Answer: Greenhouse gases (GHGs)
Natural process by which GHGs trap heat and keep the Earth warmer than it would otherwise be?
Answer: Greenhouse effect
Lowest layer of the atmosphere, where nearly all weather occurs and temperature falls with increasing height?
Answer: Troposphere
Intensification of the natural greenhouse effect by human emissions of CO₂, CH₄ and N₂O, trapping extra heat in the atmosphere?
Answer: Enhanced greenhouse effect
The fraction of incoming solar radiation reflected by a surface (e.g. ice reflects more than ocean)?
Answer: Albedo
Rise in global mean temperature caused by enhanced greenhouse effect from anthropogenic GHG emissions?
Answer: Global warming
Broad range of changes to Earth's climate system resulting from global warming?
Answer: Climate change
Strategies to slow or stop the causes of climate change (e.g. reducing GHG emissions)?
Answer: Mitigation
Strategies to manage the consequences of climate change (e.g. flood defences, drought-resistant crops)?
Answer: Adaptation
Reducing or ending reliance on fossil fuels by shifting to renewable energy sources?
Answer: Decarbonization
State in which GHG emissions are balanced by removals so net emissions are zero?
Answer: Carbon neutrality
1992 UN treaty, whose parties meet at annual Conferences of the Parties (COPs), aimed at stabilizing greenhouse gas concentrations?
Answer: UNFCCC
1987 treaty successfully phasing out CFCs and other ozone-depleting substances?
Answer: Montreal Protocol
Region about 15–35 km above Earth's surface where O₃ is concentrated, absorbing most incoming UVB and UVC?
Answer: Stratospheric ozone layer
Chemicals (e.g. CFCs) that break down ozone molecules in the stratosphere?
Answer: Ozone-depleting substances (ODSs)
Short-wavelength, high-energy part of sunlight, largely absorbed high in the atmosphere, that damages DNA and causes skin cancer and cataracts?
Answer: Ultraviolet (UV) radiation
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options are other answers from the same set.