It would be burning and digesting.
Melting is just causing a status change, solid to liquid.
Cutting is just changing the shape of something.
Rusting doesn't change the actual substance.
Boiling changes the state as well.
It's only burning and digesting.
I am pretty sure it is C. Glacier melting
Because Sedimentation I don't think will contribute to that
Answer:
Indonesia is the country of Ring of Fire
Fish and it was a new land. About 20000 people then to migrate there
If you have just one crop, what happens if you have drought? or too much rain? You might not have any crops then and you won't make enough money to support you family.