During the last few years, scientists have observed that caribou have had difficulty migrating due to the melting of the ________, creating impassable wetlands where there was once solid ground.

Question

Quizplus · Accepted Answer

Permafrost refers to ground that remains permanently frozen, and is found in the Arctic and high mountain regions. The melting of permafrost can create wetlands where there was once solid ground, which can impede caribou migration. Glaciers, ice caps, and icebergs may also be melting due to climate change, but they would not directly affect caribou migration in the same way as the melting of permafrost.

During the Last Few Years, Scientists Have Observed That Caribou