Task: Question Answering
Input (English): Process:  -Living organisms in the sea die -The matter forms on the sea floor -Layers of sediment form above the matter compressing it -After many years the matter is compressed and heated -The result is that crude oil forms.
 Question: What is the effect of there is a mass die out of a creature that is a natural occurance like when salmon spawn on more living organisms die at one time.?
Output (English): for