Which of the following is a correct list of gases that are major contributors to the enhanced greenhouse effect? A - AQA - A-Level Geography - Question 5 - 2018 - Paper 2

To determine the correct list of gases contributing to the enhanced greenhouse effect, we need to analyze each option:

• Option A: Methane, helium, oxygen

  • Helium is not a significant greenhouse gas, so this option is incorrect.

• Option B: Methane, hydrogen, hydrofluorocarbons

  • Hydrogen is not a major greenhouse gas under standard conditions. Thus, this option is also incorrect.

• Option C: Methane, hydrofluorocarbons, carbon dioxide

  • All three components in this option are recognized contributors to the greenhouse effect. Methane and carbon dioxide are well-known greenhouse gases, while hydrofluorocarbons also have significant warming potential.

• Option D: Methane, carbon dioxide, hydrogen

  • While methane and carbon dioxide are significant greenhouse gases, hydrogen is not, making this option incorrect.

From this analysis, Option C is the correct answer.