What is the area in the north most parts of the earth which has extreme and year long cold weather ?!

The process by which liquid water changes into water vapour is called what ?

In which direction does the moving force of air flow? a-from warm temperatures to cold temperatures b-to areas of high pressure to areas of low pressure c-east to west d-from high elevations to low elevations

What are two australian geographical features that hindered early exploration? western plateau gulf of carpentaria great barrier reef great dividing range