Chemistry · Oct / Nov 2019 · Paper 11 · Question 30
Methane and sulfur dioxide are two air pollutants found in the Earth's atmosphere. Which row correctly identifies one source of each gas?
- Adecaying plants; photochemical reactions
- Bdecaying plants; volcanoes
- Clightning activity; photochemical reactions
- Dlightning activity; volcanoes
As printed in the paper
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Correct answer: B. decaying plants; volcanoes
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