State two methods to reduce emissions of sulfur dioxide from power stations.

What device is fitted to vehicle exhausts to reduce the emission of acid rain-causing gases?

Explain why burning fuels with high sulfur content contributes to acid rain.

Apart from sulfur dioxide, name ONE other gas produced by vehicle engines that contributes to acid rain.

Suggest one economic and one environmental reason why switching to low-sulfur fuels may be difficult for developing countries.

Name the chemical compound used in flue gas desulfurisation to react with sulfur dioxide.

What type of chemical reaction occurs during flue gas desulfurisation when calcium oxide reacts with sulfur dioxide?

Write a balanced chemical equation for the reaction between calcium oxide and sulfur dioxide in flue gas desulfurisation. Include state symbols.

Describe the process of flue gas desulfurisation. Include what it removes and how.

State one use of the solid product (calcium sulfite / gypsum) produced from flue gas desulfurisation.

Explain chemically why calcium oxide is suitable for removing sulfur dioxide from flue gases.

Explain how acid rain is formed from sulfur dioxide, including relevant chemical equations.

Explain how a catalytic converter in a car exhaust reduces acid rain. Include the type of reaction it performs.

Evaluate the effectiveness of flue gas desulfurisation (FGD) as a method to combat acid rain. Consider both advantages and disadvantages.

Extended Response: A student claims that 'the only way to stop acid rain is to stop burning fossil fuels entirely.' Discuss this claim, referring to specific chemical strategies used to reduce acid rain and their limitations.