I believe it is the outer crust but i will do more reaserch for you :)
Answer:
supernova
Explanation:
When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova. The death of massive stars can trigger the birth of other stars.
Hope this helps!
Answer:
Environmental
Explanation:
if you think about it all things lead back to the Environment
The spirits of the ancestors, animal spirits too