Acid rain is formed when which pollutants are released from burning fossil fuels?

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Study for the Grade 9 Environmental Chemistry Test. Use a blend of multiple-choice questions and detailed explanations. Master key concepts and prepare effectively!

Multiple Choice

Acid rain is formed when which pollutants are released from burning fossil fuels?

Explanation:
When fossil fuels burn, they release sulfur dioxide and nitrogen oxides. In the atmosphere, these gases react with water, oxygen, and other chemicals to form acids—sulfuric acid from sulfur dioxide and nitric acid from nitrogen oxides. These acids mix with rain, making it acidic. That’s why sulfur dioxide and nitrogen oxides are the primary pollutants behind acid rain. The other options don’t fit because methane and ammonia aren’t the main culprits of acid formation from burning fuels, and oxygen plus carbon dioxide or inert gases like helium and neon don’t produce acid rain in the same way.

When fossil fuels burn, they release sulfur dioxide and nitrogen oxides. In the atmosphere, these gases react with water, oxygen, and other chemicals to form acids—sulfuric acid from sulfur dioxide and nitric acid from nitrogen oxides. These acids mix with rain, making it acidic. That’s why sulfur dioxide and nitrogen oxides are the primary pollutants behind acid rain. The other options don’t fit because methane and ammonia aren’t the main culprits of acid formation from burning fuels, and oxygen plus carbon dioxide or inert gases like helium and neon don’t produce acid rain in the same way.

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