The Loss of Permafrost Secondary to Global Warming in Parts

The loss of permafrost secondary to global warming in parts of Canada, Russia, China, Mongolia, and Alaska is causing

A) the release of CO₂ from the soil into the atmosphere
B) the release of CH₄ from the soil into the atmosphere
C) the release of hydrogen gas from the soil into the atmosphere
D) the release of nitrogen gas from the soil into the atmosphere
E) the release of CO₂ and CH₄ from the soil into the atmosphere