Permafrost refers to the fact that the ground in high latitudes which is permanently frozen - that is, which does not defreeze in the summer. It does not defreeze because it is isolated by soil - this is the correct answer - from the warmer air, so it is actually not in touch with the positive temperatures.
Answer:
Answer is B, a public good dilemma.
Explanation:
Public good dilemma is a type of social dilemma, which involve the decision of members of a group decide the outcome for any individual.
Its characteristics is that anyone can benefit from their decision at the same time.
Ambition is the drive to achieve something. It means that someone is willing to work hard to reach their goal. They want to get satisfaction from their accomplishment. Some have massive ambitions and want to do something big. Others have smaller goals, but they are still seeing through an ambition that matters to them.
