As far as I can tell it would be D. I took 5 million and multiplied it by 8 to get that.
When one organism eats another the matter or carbon, nitrogen,and other essential elements are transferred from one to another. these elements move from the producers to the consumers and eventually to the decomposers cycling the matter through the ecosystem.
Hope this helped :)
Answer:
light waves because everything else is a mechanical wave
Earth has four different layers
Inner core
Outer core
Mantle
Crust
