The correct answer to the question "What is it called when water falls from the sky?" is B. precipitation.
Here's a brief explanation to help you understand:
1. **Precipitation:** This is the term used to describe any form of water, liquid or solid, that falls from the sky. It includes rain, snow, sleet, or hail.
In summary, when water falls from the sky in the form of rain, snow, sleet, or hail, it is referred to as precipitation.
