The Arctic region is defined based on the July 10°C (50°F) isotherm whereas the Antarctic region is defined based on the February 10°C (50°F) isotherm.

Question

Quizplus · Accepted Answer

This statement is true according to the widely accepted Köppen climate classification system which uses the 10°C (50°F) isotherm as a boundary to define the polar climate zones. However, it should be noted that other definitions and regional variations exist.

The Arctic Region Is Defined Based on the July 10°C