Use the picture below to answer the following questions:

D

frequency

C

A

that's the answer

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.