Climate Change and Air Quality Quiz w4

Which of the following is a precursor of secondary aerosol that can scatter solar radiation back to space?

• NO₂

• CO₂

• CH₄

• O₃

What is the effect of aerosols on climate according to the document?

• Positive (warming) radiative forcing

• Negative (cooling) radiative forcing

• No effect on radiative forcing

• Both positive and negative radiative forcing

Which of the following is a product of incomplete combustion and can be a substantial part of PM₂.₅?

• Black Carbon (BC)

• Ozone (O₃)

• Methane (CH₄)

• Carbon Dioxide (CO₂)

What is the impact of Black Carbon (BC) on solar radiation?

• Absorbs solar radiation leading to positive (warming) radiative forcing

• Reflects solar radiation leading to negative (cooling) radiative forcing

• No impact on solar radiation

• Both absorbs and reflects solar radiation

Which component is one of the largest single components of the current radiative forcing of climate?

• Tropospheric O₃

• Stratospheric O₃

• Methane (CH₄)

• Nitrous Oxide (N₂O)

What is the most effective altitude for Gases (GHG) in terms of radiative impact?

• High in the troposphere

• Low in the troposphere

• At the surface

• In the stratosphere

What factor does the effect of Aerosol depend on?

• Temperature

• Altitude

• Humidity

• Wind speed

Why can't ozone be assigned a Global Warming Potential (GWP)?

• It is too variable

• It is secondary

• It is too stable

• It is too reactive

What is the most important issue regarding air pollutants at the surface?

• Their chemical composition

• Their concentration

• Their temperature

• Their color

What is problematic about using Global Warming Potentials (GWP) and Radiative Forcing metrics to describe AQ pollutants such as aerosols on climate change (CC)?

• They are too complex

• They are not accurate

• They are secondary pollutants

• They are not evenly distributed