How much warmer can the inside of an igloo be compared to the outside air?

I work best on a deadline so I start projects close to their due date.

A.) Up to 20 degrees

A.) Up to 20 degrees

I work on the tasks that I enjoy most first.

B.) 20 – 40 degrees

B.) 20 – 40 degrees

I work on the tasks that I enjoy most first.

C.) 40 – 60 degrees

C.) 40 – 60 degrees

I work on the tasks that I enjoy most first.

D.) 60 – 80 degrees

D.) 60 – 80 degrees