Mention six occasions during which libation is offered​

Most often Libation was done under the following circumstances:

Explanation:

A libation is a ritual pouring of a liquid, or grains such as rice, as an offering to a deity or spirit, or in memory of the dead. It was common in many religions of antiquity and continues to be offered in cultures today.

it teaches readers about an interesting chinese custom and causes them to determine that the minister is trying to be polite

answer; ///he could not explain why the continents drifted;