The temperature and pressure in the subpolar and polar zones are very close to the for water. regions are the only climate regions where water can exist as a gas, liquid, and solid. The most popular system for classifying climate in different regions on Earth is the climate classification system.

1 triple point

2 subpolar and polar

3 Köppen

4 Scientists use data over many decades to understand climate and how it changes. This data is used because temperatures, winds, and precipitation can change by large amounts throughout a day; using large data sets allows for daily variations to cancel out and allows scientists to understand how climate can change on average.

Explanation:

mass production/ assembly line production