**Here are 10 examples of using the word «polar»:**
1. The North Pole is the most famous polar region on Earth.
2. The climate in polar regions is very harsh and cold.
3. The polar ice caps are melting due to global warming.
4. Polar bears are well adapted to life in polar conditions.
5. The Aurora Borealis, or Northern Lights, is a natural phenomenon that occurs in polar regions.
6. Polar exploration was a popular hobby among explorers in the 19th and early 20th centuries.
7. The North Pole and the South Pole are both polar regions, but they are located on opposite sides of the Earth.
8. Polar coordinates are a system of coordinates used to locate points on a plane or a sphere.
9. The Arctic Ocean is the largest polar ocean on Earth.
10. Polar regions are home to unique ecosystems and wildlife, such as penguins and walruses.