Question

1. in which regions does sublimation usually occur?
2. how does the water cycle support life on earth?

Explanation:

Sublimation is the process where a solid turns directly into a gas without becoming a liquid. In the water cycle, sublimation of ice (solid water) occurs in cold, dry regions. The water cycle supports life by distributing water (a vital resource) across Earth, facilitating processes like photosynthesis (plants need water), providing drinking water for organisms, and regulating temperature (through processes like evaporation which cools the environment).

Answer:

1. Sublimation usually occurs in cold, dry regions (e.g., polar regions, high - altitude mountainous areas where ice can turn directly into water vapor).
2. The water cycle supports life on Earth by distributing water (which is essential for processes like photosynthesis in plants, hydration of animals), regulating temperature (through evaporation and condensation), and ensuring a continuous supply of fresh water (through precipitation) for various life forms.