Paper 1 · People, Development and Environment
Which of the following is not considered a greenhouse gas?
AMethane
BChlorofluorocarbons (CFCs)
CHydrogen ✓ Correct
DOzone
Correct answer: (C) Hydrogen — Hydrogen is not considered a greenhouse gas, so that is the answer.
Explanation
★Hydrogen is not considered a greenhouse gas, so that is the answer.
★Greenhouse gases trap heat in the atmosphere.
★Methane, CFCs and ozone all trap heat this way.
★Hydrogen does not trap heat as a greenhouse gas.
★So the one not counted as a greenhouse gas is hydrogen.
★So the answer is hydrogen.
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