CSS - PMS - CCE - PCS - General Science
Paris Climate Change
What is the Paris Agreement's long-term temperature goal?
A. Keep warming below 5°C only
B. Set no temperature goal
C. Cool Earth exactly 1°C below pre-industrial levels
D. Hold warming well below 2°C and pursue efforts to limit it to 1.5°C above pre-industrial levels
Correct Answer: D
Article 2 sets the well-below-2°C goal and pursuit of 1.5°C.
CSS - PMS - CCE - PCS - General Science
Paris Climate Change
At which COP was the Paris Agreement adopted?
A. COP28
B. COP15
C. COP1
D. COP21
Correct Answer: D
The agreement was adopted at the 21st Conference of the Parties to the UNFCCC.
CSS - PMS - CCE - PCS - General Science
Paris Climate Change
In what year was the Paris Agreement adopted?
A. 2015
B. 2005
C. 1992
D. 2020
Correct Answer: A
Parties adopted the Paris Agreement at COP21 in Paris in December 2015.
CSS - PMS - CCE - PCS - General Science
Paris Climate Change
What is the Paris Agreement?
A. A global climate treaty adopted under the UNFCCC
B. A military alliance
C. A trade agreement under WTO
D. A biodiversity treaty under UNESCO
Correct Answer: A
The Paris Agreement is an international climate agreement under the UN Framework Convention on Climate Change.
CSS - PMS - CCE - PCS - General Science
Global Warming
Which action addresses global warming at its source?
A. Building only taller sea walls
B. Measuring rainfall without emission changes
C. Reducing net greenhouse-gas emissions
D. Changing clock time
Correct Answer: C
Emission reductions are mitigation; adaptation manages impacts.
CSS - PMS - CCE - PCS - General Science
Global Warming
Which global temperature quantity is commonly tracked to assess warming?
A. Temperature at one weather station only
B. Ocean salinity only
C. Temperature of one city
D. Change in global mean surface temperature relative to a baseline
Correct Answer: D
Global warming is assessed using combined land and ocean temperature datasets over time.
CSS - PMS - CCE - PCS - General Science
Global Warming
Why is methane important to global warming?
A. It is a potent greenhouse gas with strong warming influence per molecule over relevant time horizons
B. It is not a greenhouse gas
C. It blocks all sunlight
D. It is the main component of oxygen
Correct Answer: A
Methane absorbs infrared radiation and contributes significantly to anthropogenic warming.
CSS - PMS - CCE - PCS - General Science
Global Warming
Does the presence of a cold day disprove global warming?
A. No, short-term local weather variability can occur within a long-term warming trend
B. Yes, one cold day disproves all long-term data
C. Only in winter
D. Only in the tropics
Correct Answer: A
Climate trends are assessed over long periods and broad spatial scales.
CSS - PMS - CCE - PCS - General Science
Global Warming
Which measure can reduce warming from electricity generation?
A. Removing energy efficiency
B. Increasing uncontrolled coal burning
C. Burning forests
D. Replacing high-carbon fossil generation with low-carbon energy sources
Correct Answer: D
Decarbonizing power generation reduces CO2 emissions.
CSS - PMS - CCE - PCS - General Science
Global Warming
How can deforestation contribute to global warming?
A. It releases stored carbon and reduces carbon uptake by vegetation
B. It increases the number of carbon sinks
C. It has no effect on carbon cycling
D. It removes all greenhouse gases
Correct Answer: A
Forest loss can both emit CO2 and reduce future sequestration.
CSS - PMS - CCE - PCS - General Science
Global Warming
Which feedback can amplify warming when snow and ice melt?
A. Sound feedback
B. Magnetic feedback
C. Ice-albedo feedback
D. Tidal feedback
Correct Answer: C
Less bright ice means more solar energy is absorbed by darker land or ocean surfaces.
CSS - PMS - CCE - PCS - General Science
Global Warming
Which greenhouse gas is emitted in large quantities by fossil-fuel combustion?
A. Neon
B. Carbon dioxide
C. Argon
D. Helium
Correct Answer: B
Combustion of coal, oil and gas oxidizes carbon to CO2.
CSS - PMS - CCE - PCS - General Science
Global Warming
What is the primary cause of recent global warming?
A. Human-caused increase in greenhouse gases
B. Increase in atmospheric oxygen
C. Changes in Earth's core only
D. Tides only
Correct Answer: A
Scientific assessments attribute most recent warming to anthropogenic greenhouse-gas emissions.
CSS - PMS - CCE - PCS - General Science
Global Warming
What does global warming specifically refer to?
A. Natural seasons only
B. Daily noon temperature
C. Any local heat wave
D. Long-term increase in Earth's average surface temperature
Correct Answer: D
Global warming is the long-term rise in global mean temperature, a major component of climate change.
CSS - PMS - CCE - PCS - General Science
Climate Change
Why are climate projections not the same as daily weather forecasts?
A. Weather forecasts cover centuries exactly
B. Climate models ignore physics
C. Climate projections estimate long-term statistical patterns under assumptions, not exact day-to-day weather
D. Climate has no relation to atmosphere
Correct Answer: C
Climate and weather operate at different time scales and questions.
CSS - PMS - CCE - PCS - General Science
Climate Change
What is a carbon sink?
A. Any source that emits only carbon
B. A reservoir that absorbs more carbon than it releases over a given period
C. A device that measures wind speed
D. A unit of temperature
Correct Answer: B
Forests, soils and oceans can act as carbon sinks.
CSS - PMS - CCE - PCS - General Science
Climate Change
Which sector is strongly linked to methane emissions?
A. Wind turbines only
B. Livestock and fossil-fuel systems
C. Photosynthesis only
D. Solar panels only
Correct Answer: B
Methane comes from ruminants, rice cultivation, landfills and fossil-fuel production among other sources.
CSS - PMS - CCE - PCS - General Science
Climate Change
Why does global sea level rise as the climate warms?
A. Earth's oceans lose water
B. Gravity stops working
C. Melting floating sea ice alone adds all rise
D. Thermal expansion of seawater and melting land ice
Correct Answer: D
Ocean warming expands seawater while glaciers and ice sheets add water to oceans.
CSS - PMS - CCE - PCS - General Science
Climate Change
What is climate adaptation?
A. Increasing fossil fuel use
B. Only reducing CO2 emissions
C. Adjusting systems and behavior to reduce harm from actual or expected climate impacts
D. Eliminating all weather
Correct Answer: C
Adaptation reduces vulnerability to climate effects such as heat, drought and sea-level rise.
CSS - PMS - CCE - PCS - General Science
Climate Change
What is climate mitigation?
A. Measuring daily weather
B. Predicting one storm
C. Actions that reduce greenhouse gas emissions or enhance carbon sinks
D. Adjusting to unavoidable impacts only
Correct Answer: C
Mitigation addresses the causes of climate change.