Read the excerpt below and answer the questions that follow. Billions of people still breathe unhealthy air: new WHO dat

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Read the excerpt below and answer the questions that follow.
Billions of people still breathe unhealthy air: new WHO data
Over 6000 cities now monitor air quality
4 April 2022 News release Geneva, Switzerland
A record number of over 6000 cities in 117 countries are now monitoring air quality, but the people living in them are still breathing unhealthy levels of fine particulate matter and nitrogen dioxide, with people in low and middle-income countries suffering the highest exposures.
A number of governments are taking steps to improve air quality, but the World Health Organization is calling for a rapid intensification of actions to:
QUESTIONS
a) Identify ONE secondary air pollutant associated with the transport sector and describe ONE practice that could be used to reduce or eliminate its production. [1.5 marks]
b) Describe ONE practice that could be used on farms to reduce the production of particulates caused by the incineration of agricultural waste. [1 mark]
c) Explain whether thermal inversion would increase or decrease the effects of air pollution. Please provide a description of thermal inversion in your response. [2marks]