hyperbole
The literary device in this sentence is a simile. It compares the coldness of the lemonade to the extreme coldness of an iceberg in the Arctic using the word "than" to establish the relationship.
Yes, Antarctica is about 30 degrees F colder than the Arctic, because it is a continent. The Arctic is open water and sea ice.
The antarctic is colder than the arctic because of Antarctica, the continent, on which is stored 90% of the Earth's store of ice.
No, it's not.
Antarctica is colder than the arctic because it is a continent with high elevation, which is about 2,800 meters above sea level. The continent is considered a heat-sink for planet earth. Antarctica is about 30 degrees F colder than the Arctic.
The ice, which is colder than the lemonade, absorbs heat from it as it warms and melts.
Warmer
The two climates are not the same. Antarctica is far colder than North America, as is the Arctic. Antarctica is about 30 degrees F colder than the Arctic.
On average, yes.
Generally warmer.
Antarctica is colder than the Arctic. The average temperature in Antarctica is around -49 degrees Celsius (-56 degrees Fahrenheit), while the Arctic's average temperature is around -34 degrees Celsius (-29 degrees Fahrenheit).