In rain myths the chinese rain master and the madagascan myth both feature

origin stories

Explanation:

Both myths have a responsibility to explain how the rain originated, how that origin affected the environment where the history and the characters passes and how important this was for life. These myths do not present any passage that evidences moral or ethical values, deities, rewards or penalties, but are committed to tell a story of origin in the way that is most appropriate for the myth.

d.) continue to rise rapidly

answer; cultural trait;