A region has one unusually cold day. What is the soundest conclusion about what this event says about climate change?
6 Climate Change Online Quiz Questions
Use this free practice quiz with 20 questions to review 6 Climate Change, test your knowledge, and prepare for your next test or exam.
The natural greenhouse effect is essential because it helps keep Earth warm enough for life.
- A
True
- B
False
A city wants to limit the causes of climate change. Which action is mitigation rather than adaptation?
- A
Installing urban shade to reduce heat exposure
- B
Replacing fossil-fuel energy with low- or zero-emission energy
- C
Creating a flood plan for a coastal community
- D
Developing crop varieties suited to changing conditions
A town installs heat-warning systems to reduce harm from expected heat. What climate-response approach is it using?
Naturally occurring greenhouse gases help keep Earth warm by absorbing some that Earth releases.
A region is preparing for climate-related impacts. Select all the actions that are examples of adaptation.
- A
Establishing a heat-warning system
- B
Replacing fossil fuels with low-emission energy
- C
Introducing water-conservation measures during drought
- D
Reducing deforestation to lower emissions
In 2011–2020, how far above the 1850–1900 average was global surface temperature, in °C?
Natural factors such as volcanic eruptions and changes in solar output cannot explain the warming observed since the mid-20th century.
- A
True
- B
False
Which factors can help explain why climate risks differ from one community to another? Select all that apply.
- A
A coastal community's exposure to sea-level rise
- B
The global average temperature alone, regardless of local conditions
- C
A farming region's vulnerability to heat or changes in seasonal rainfall
- D
The assumption that every community faces the same risks
Greenhouse-gas emissions begin to fall, but some climate changes continue. Which explanation best fits this outcome?
- A
The atmosphere immediately removes all stored heat when emissions fall.
- B
Climate change stops as soon as annual emissions decrease.
- C
Oceans store heat, so some climate changes continue even after emissions fall.
- D
Stored ocean heat prevents any future climate changes.
Because oceans absorb and store heat, the climate system has , meaning some changes continue even after emissions fall.
Why do sustained greenhouse-gas emission cuts help limit future warming, even though they cannot instantly remove accumulated carbon dioxide?
- A
It immediately removes all carbon dioxide already in the atmosphere.
- B
It prevents all climate impacts from occurring.
- C
It makes future warming independent of greenhouse-gas emissions.
- D
It reduces the additional warming humans cause.
According to the material, what specific hazard can sea-level rise pose to coastal communities?
Explain how restoring a wetland can support both mitigation and adaptation, and identify one additional benefit described in the material.
True or false: A single cold day is enough, by itself, to show that the climate is not warming.
- A
True
- B
False
By approximately how many °C was global surface temperature in 2011–2020 above its 1850–1900 average? Enter the value to the nearest tenth.
A farming region experiences rising atmospheric methane levels. Which change best explains how this can contribute to warming?
- A
They block the Sun from supplying energy to Earth.
- B
They absorb more outgoing heat, strengthening the greenhouse effect.
- C
They stop Earth from reflecting any sunlight.
- D
They prevent the oceans from storing heat.
Seasonal rainfall is shifting in a farming area. Which response is an example of adaptation?
- A
Replace fossil fuels with low- or zero-emission energy.
- B
Restore forests to increase the removal of greenhouse gases from the atmosphere.
- C
Use crop varieties suited to changing conditions.
- D
Reduce deforestation to limit greenhouse-gas emissions.
Two communities experience the same global warming, but one is a low-lying coastal settlement with limited resources. Which explanation best accounts for its potentially greater climate risk?
- A
Every community faces identical risks because warming is global.
- B
Only the community's past emissions determine its risk.
- C
Risk depends partly on local exposure and vulnerability to hazards.
- D
Local risks cannot change when average climate conditions change.
Emissions begin to fall, but some climate changes continue. Which feature of the climate system best explains this?
- A
Some changes continue because oceans absorb and store heat.
- B
All climate change stops immediately when emissions decline.
- C
Stored ocean heat prevents greenhouse gases from affecting climate.
- D
The climate system has no response to changes in emissions.